212855440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{2551}}^1$

素因数の和:2720

約数の個数: 80

約数和(自身を含む): 569606400

約数和(自身を除く): 356750960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 149, 280, 298, 560, 596, 745, 1043, 1192, 1490, 2086, 2384, 2551, 2980, 4172, 5102, 5215, 5960, 8344, 10204, 10430, 11920, 12755, 16688, 17857, 20408, 20860, 25510, 35714, 40816, 41720, 51020, 71428, 83440, 89285, 102040, 142856, 178570, 204080, 285712, 357140, 380099, 714280, 760198, 1428560, 1520396, 1900495, 2660693, 3040792, 3800990, 5321386, 6081584, 7601980, 10642772, 13303465, 15203960, 21285544, 26606930, 30407920, 42571088, 53213860, 106427720, 212855440]

約数ペア:

[(1, 212855440), (2, 106427720), (4, 53213860), (5, 42571088), (7, 30407920), (8, 26606930), (10, 21285544), (14, 15203960), (16, 13303465), (20, 10642772), (28, 7601980), (35, 6081584), (40, 5321386), (56, 3800990), (70, 3040792), (80, 2660693), (112, 1900495), (140, 1520396), (149, 1428560), (280, 760198), (298, 714280), (560, 380099), (596, 357140), (745, 285712), (1043, 204080), (1192, 178570), (1490, 142856), (2086, 102040), (2384, 89285), (2551, 83440), (2980, 71428), (4172, 51020), (5102, 41720), (5215, 40816), (5960, 35714), (8344, 25510), (10204, 20860), (10430, 20408), (11920, 17857), (12755, 16688)]