218612800

素因数分解:

$2^6\times 5^2\times 7^1\times {\mathrm{131}}^1\times {\mathrm{149}}^1$

素因数の和:309

約数の個数: 168

約数和(自身を含む): 623620800

約数和(自身を除く): 405008000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 50, 56, 64, 70, 80, 100, 112, 131, 140, 149, 160, 175, 200, 224, 262, 280, 298, 320, 350, 400, 448, 524, 560, 596, 655, 700, 745, 800, 917, 1043, 1048, 1120, 1192, 1310, 1400, 1490, 1600, 1834, 2086, 2096, 2240, 2384, 2620, 2800, 2980, 3275, 3668, 3725, 4172, 4192, 4585, 4768, 5215, 5240, 5600, 5960, 6550, 7336, 7450, 8344, 8384, 9170, 9536, 10430, 10480, 11200, 11920, 13100, 14672, 14900, 16688, 18340, 19519, 20860, 20960, 22925, 23840, 26075, 26200, 29344, 29800, 33376, 36680, 39038, 41720, 41920, 45850, 47680, 52150, 52400, 58688, 59600, 66752, 73360, 78076, 83440, 91700, 97595, 104300, 104800, 119200, 136633, 146720, 156152, 166880, 183400, 195190, 208600, 209600, 238400, 273266, 293440, 312304, 333760, 366800, 390380, 417200, 487975, 546532, 624608, 683165, 733600, 780760, 834400, 975950, 1093064, 1249216, 1366330, 1467200, 1561520, 1668800, 1951900, 2186128, 2732660, 3123040, 3415825, 3903800, 4372256, 5465320, 6246080, 6831650, 7807600, 8744512, 10930640, 13663300, 15615200, 21861280, 27326600, 31230400, 43722560, 54653200, 109306400, 218612800]

約数ペア:

[(1, 218612800), (2, 109306400), (4, 54653200), (5, 43722560), (7, 31230400), (8, 27326600), (10, 21861280), (14, 15615200), (16, 13663300), (20, 10930640), (25, 8744512), (28, 7807600), (32, 6831650), (35, 6246080), (40, 5465320), (50, 4372256), (56, 3903800), (64, 3415825), (70, 3123040), (80, 2732660), (100, 2186128), (112, 1951900), (131, 1668800), (140, 1561520), (149, 1467200), (160, 1366330), (175, 1249216), (200, 1093064), (224, 975950), (262, 834400), (280, 780760), (298, 733600), (320, 683165), (350, 624608), (400, 546532), (448, 487975), (524, 417200), (560, 390380), (596, 366800), (655, 333760), (700, 312304), (745, 293440), (800, 273266), (917, 238400), (1043, 209600), (1048, 208600), (1120, 195190), (1192, 183400), (1310, 166880), (1400, 156152), (1490, 146720), (1600, 136633), (1834, 119200), (2086, 104800), (2096, 104300), (2240, 97595), (2384, 91700), (2620, 83440), (2800, 78076), (2980, 73360), (3275, 66752), (3668, 59600), (3725, 58688), (4172, 52400), (4192, 52150), (4585, 47680), (4768, 45850), (5215, 41920), (5240, 41720), (5600, 39038), (5960, 36680), (6550, 33376), (7336, 29800), (7450, 29344), (8344, 26200), (8384, 26075), (9170, 23840), (9536, 22925), (10430, 20960), (10480, 20860), (11200, 19519), (11920, 18340), (13100, 16688), (14672, 14900)]