305258240

素因数分解:

$2^8\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{157}}^1$

素因数の和:223

約数の個数: 216

約数和(自身を含む): 883596672

約数和(自身を除く): 578338432

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 49, 56, 62, 64, 70, 80, 98, 112, 124, 128, 140, 155, 157, 160, 196, 217, 224, 245, 248, 256, 280, 310, 314, 320, 392, 434, 448, 490, 496, 560, 620, 628, 640, 784, 785, 868, 896, 980, 992, 1085, 1099, 1120, 1240, 1256, 1280, 1519, 1568, 1570, 1736, 1792, 1960, 1984, 2170, 2198, 2240, 2480, 2512, 3038, 3136, 3140, 3472, 3920, 3968, 4340, 4396, 4480, 4867, 4960, 5024, 5495, 6076, 6272, 6280, 6944, 7595, 7693, 7840, 7936, 8680, 8792, 8960, 9734, 9920, 10048, 10990, 12152, 12544, 12560, 13888, 15190, 15386, 15680, 17360, 17584, 19468, 19840, 20096, 21980, 24304, 24335, 25120, 27776, 30380, 30772, 31360, 34069, 34720, 35168, 38465, 38936, 39680, 40192, 43960, 48608, 48670, 50240, 55552, 60760, 61544, 62720, 68138, 69440, 70336, 76930, 77872, 87920, 97216, 97340, 100480, 121520, 123088, 136276, 138880, 140672, 153860, 155744, 170345, 175840, 194432, 194680, 200960, 238483, 243040, 246176, 272552, 277760, 281344, 307720, 311488, 340690, 351680, 388864, 389360, 476966, 486080, 492352, 545104, 615440, 622976, 681380, 703360, 778720, 953932, 972160, 984704, 1090208, 1192415, 1230880, 1245952, 1362760, 1406720, 1557440, 1907864, 1944320, 1969408, 2180416, 2384830, 2461760, 2725520, 3114880, 3815728, 4360832, 4769660, 4923520, 5451040, 6229760, 7631456, 8721664, 9539320, 9847040, 10902080, 15262912, 19078640, 21804160, 30525824, 38157280, 43608320, 61051648, 76314560, 152629120, 305258240]

約数ペア:

[(1, 305258240), (2, 152629120), (4, 76314560), (5, 61051648), (7, 43608320), (8, 38157280), (10, 30525824), (14, 21804160), (16, 19078640), (20, 15262912), (28, 10902080), (31, 9847040), (32, 9539320), (35, 8721664), (40, 7631456), (49, 6229760), (56, 5451040), (62, 4923520), (64, 4769660), (70, 4360832), (80, 3815728), (98, 3114880), (112, 2725520), (124, 2461760), (128, 2384830), (140, 2180416), (155, 1969408), (157, 1944320), (160, 1907864), (196, 1557440), (217, 1406720), (224, 1362760), (245, 1245952), (248, 1230880), (256, 1192415), (280, 1090208), (310, 984704), (314, 972160), (320, 953932), (392, 778720), (434, 703360), (448, 681380), (490, 622976), (496, 615440), (560, 545104), (620, 492352), (628, 486080), (640, 476966), (784, 389360), (785, 388864), (868, 351680), (896, 340690), (980, 311488), (992, 307720), (1085, 281344), (1099, 277760), (1120, 272552), (1240, 246176), (1256, 243040), (1280, 238483), (1519, 200960), (1568, 194680), (1570, 194432), (1736, 175840), (1792, 170345), (1960, 155744), (1984, 153860), (2170, 140672), (2198, 138880), (2240, 136276), (2480, 123088), (2512, 121520), (3038, 100480), (3136, 97340), (3140, 97216), (3472, 87920), (3920, 77872), (3968, 76930), (4340, 70336), (4396, 69440), (4480, 68138), (4867, 62720), (4960, 61544), (5024, 60760), (5495, 55552), (6076, 50240), (6272, 48670), (6280, 48608), (6944, 43960), (7595, 40192), (7693, 39680), (7840, 38936), (7936, 38465), (8680, 35168), (8792, 34720), (8960, 34069), (9734, 31360), (9920, 30772), (10048, 30380), (10990, 27776), (12152, 25120), (12544, 24335), (12560, 24304), (13888, 21980), (15190, 20096), (15386, 19840), (15680, 19468), (17360, 17584)]