18754960

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{313}}^1$

素因数の和:440

約数の個数: 80

約数和(自身を含む): 50461056

約数和(自身を除く): 31706096

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 107, 112, 140, 214, 280, 313, 428, 535, 560, 626, 749, 856, 1070, 1252, 1498, 1565, 1712, 2140, 2191, 2504, 2996, 3130, 3745, 4280, 4382, 5008, 5992, 6260, 7490, 8560, 8764, 10955, 11984, 12520, 14980, 17528, 21910, 25040, 29960, 33491, 35056, 43820, 59920, 66982, 87640, 133964, 167455, 175280, 234437, 267928, 334910, 468874, 535856, 669820, 937748, 1172185, 1339640, 1875496, 2344370, 2679280, 3750992, 4688740, 9377480, 18754960]

約数ペア:

[(1, 18754960), (2, 9377480), (4, 4688740), (5, 3750992), (7, 2679280), (8, 2344370), (10, 1875496), (14, 1339640), (16, 1172185), (20, 937748), (28, 669820), (35, 535856), (40, 468874), (56, 334910), (70, 267928), (80, 234437), (107, 175280), (112, 167455), (140, 133964), (214, 87640), (280, 66982), (313, 59920), (428, 43820), (535, 35056), (560, 33491), (626, 29960), (749, 25040), (856, 21910), (1070, 17528), (1252, 14980), (1498, 12520), (1565, 11984), (1712, 10955), (2140, 8764), (2191, 8560), (2504, 7490), (2996, 6260), (3130, 5992), (3745, 5008), (4280, 4382)]