201918760

素因数分解:

$2^3\times 5^1\times {\mathrm{521}}^1\times {\mathrm{9689}}^1$

素因数の和:10221

約数の個数: 32

約数和(自身を含む): 455236200

約数和(自身を除く): 253317440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 521, 1042, 2084, 2605, 4168, 5210, 9689, 10420, 19378, 20840, 38756, 48445, 77512, 96890, 193780, 387560, 5047969, 10095938, 20191876, 25239845, 40383752, 50479690, 100959380, 201918760]

約数ペア:

[(1, 201918760), (2, 100959380), (4, 50479690), (5, 40383752), (8, 25239845), (10, 20191876), (20, 10095938), (40, 5047969), (521, 387560), (1042, 193780), (2084, 96890), (2605, 77512), (4168, 48445), (5210, 38756), (9689, 20840), (10420, 19378)]