155685220

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{223}}^1\times {\mathrm{521}}^1$

素因数の和:820

約数の個数: 48

約数和(自身を含む): 333946368

約数和(自身を除く): 178261148

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 223, 268, 335, 446, 521, 670, 892, 1042, 1115, 1340, 2084, 2230, 2605, 4460, 5210, 10420, 14941, 29882, 34907, 59764, 69814, 74705, 116183, 139628, 149410, 174535, 232366, 298820, 349070, 464732, 580915, 698140, 1161830, 2323660, 7784261, 15568522, 31137044, 38921305, 77842610, 155685220]

約数ペア:

[(1, 155685220), (2, 77842610), (4, 38921305), (5, 31137044), (10, 15568522), (20, 7784261), (67, 2323660), (134, 1161830), (223, 698140), (268, 580915), (335, 464732), (446, 349070), (521, 298820), (670, 232366), (892, 174535), (1042, 149410), (1115, 139628), (1340, 116183), (2084, 74705), (2230, 69814), (2605, 59764), (4460, 34907), (5210, 29882), (10420, 14941)]