1230880000

素因数分解:

$2^8\times 5^4\times 7^2\times {\mathrm{157}}^1$

素因数の和:207

約数の個数: 270

約数和(自身を含む): 3594213546

約数和(自身を除く): 2363333546

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 49, 50, 56, 64, 70, 80, 98, 100, 112, 125, 128, 140, 157, 160, 175, 196, 200, 224, 245, 250, 256, 280, 314, 320, 350, 392, 400, 448, 490, 500, 560, 625, 628, 640, 700, 784, 785, 800, 875, 896, 980, 1000, 1099, 1120, 1225, 1250, 1256, 1280, 1400, 1568, 1570, 1600, 1750, 1792, 1960, 2000, 2198, 2240, 2450, 2500, 2512, 2800, 3136, 3140, 3200, 3500, 3920, 3925, 4000, 4375, 4396, 4480, 4900, 5000, 5024, 5495, 5600, 6125, 6272, 6280, 6400, 7000, 7693, 7840, 7850, 8000, 8750, 8792, 8960, 9800, 10000, 10048, 10990, 11200, 12250, 12544, 12560, 14000, 15386, 15680, 15700, 16000, 17500, 17584, 19600, 19625, 20000, 20096, 21980, 22400, 24500, 25120, 27475, 28000, 30625, 30772, 31360, 31400, 32000, 35000, 35168, 38465, 39200, 39250, 40000, 40192, 43960, 44800, 49000, 50240, 54950, 56000, 61250, 61544, 62720, 62800, 70000, 70336, 76930, 78400, 78500, 80000, 87920, 98000, 98125, 100480, 109900, 112000, 122500, 123088, 125600, 137375, 140000, 140672, 153860, 156800, 157000, 160000, 175840, 192325, 196000, 196250, 200960, 219800, 224000, 245000, 246176, 251200, 274750, 280000, 281344, 307720, 313600, 314000, 351680, 384650, 392000, 392500, 439600, 490000, 492352, 502400, 549500, 560000, 615440, 628000, 686875, 703360, 769300, 784000, 785000, 879200, 961625, 980000, 984704, 1004800, 1099000, 1120000, 1230880, 1256000, 1373750, 1406720, 1538600, 1568000, 1570000, 1758400, 1923250, 1960000, 1969408, 2198000, 2461760, 2512000, 2747500, 3077200, 3140000, 3516800, 3846500, 3920000, 4396000, 4808125, 4923520, 5024000, 5495000, 6154400, 6280000, 7033600, 7693000, 7840000, 8792000, 9616250, 9847040, 10990000, 12308800, 12560000, 15386000, 17584000, 19232500, 21980000, 24617600, 25120000, 30772000, 35168000, 38465000, 43960000, 49235200, 61544000, 76930000, 87920000, 123088000, 153860000, 175840000, 246176000, 307720000, 615440000, 1230880000]

約数ペア:

[(1, 1230880000), (2, 615440000), (4, 307720000), (5, 246176000), (7, 175840000), (8, 153860000), (10, 123088000), (14, 87920000), (16, 76930000), (20, 61544000), (25, 49235200), (28, 43960000), (32, 38465000), (35, 35168000), (40, 30772000), (49, 25120000), (50, 24617600), (56, 21980000), (64, 19232500), (70, 17584000), (80, 15386000), (98, 12560000), (100, 12308800), (112, 10990000), (125, 9847040), (128, 9616250), (140, 8792000), (157, 7840000), (160, 7693000), (175, 7033600), (196, 6280000), (200, 6154400), (224, 5495000), (245, 5024000), (250, 4923520), (256, 4808125), (280, 4396000), (314, 3920000), (320, 3846500), (350, 3516800), (392, 3140000), (400, 3077200), (448, 2747500), (490, 2512000), (500, 2461760), (560, 2198000), (625, 1969408), (628, 1960000), (640, 1923250), (700, 1758400), (784, 1570000), (785, 1568000), (800, 1538600), (875, 1406720), (896, 1373750), (980, 1256000), (1000, 1230880), (1099, 1120000), (1120, 1099000), (1225, 1004800), (1250, 984704), (1256, 980000), (1280, 961625), (1400, 879200), (1568, 785000), (1570, 784000), (1600, 769300), (1750, 703360), (1792, 686875), (1960, 628000), (2000, 615440), (2198, 560000), (2240, 549500), (2450, 502400), (2500, 492352), (2512, 490000), (2800, 439600), (3136, 392500), (3140, 392000), (3200, 384650), (3500, 351680), (3920, 314000), (3925, 313600), (4000, 307720), (4375, 281344), (4396, 280000), (4480, 274750), (4900, 251200), (5000, 246176), (5024, 245000), (5495, 224000), (5600, 219800), (6125, 200960), (6272, 196250), (6280, 196000), (6400, 192325), (7000, 175840), (7693, 160000), (7840, 157000), (7850, 156800), (8000, 153860), (8750, 140672), (8792, 140000), (8960, 137375), (9800, 125600), (10000, 123088), (10048, 122500), (10990, 112000), (11200, 109900), (12250, 100480), (12544, 98125), (12560, 98000), (14000, 87920), (15386, 80000), (15680, 78500), (15700, 78400), (16000, 76930), (17500, 70336), (17584, 70000), (19600, 62800), (19625, 62720), (20000, 61544), (20096, 61250), (21980, 56000), (22400, 54950), (24500, 50240), (25120, 49000), (27475, 44800), (28000, 43960), (30625, 40192), (30772, 40000), (31360, 39250), (31400, 39200), (32000, 38465), (35000, 35168)]