20123129870

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{647}}^1\times {\mathrm{4663}}^1$

素因数の和:5369

約数の個数: 64

約数和(自身を含む): 39168645120

約数和(自身を除く): 19045515250

約数列:

[1, 2, 5, 10, 23, 29, 46, 58, 115, 145, 230, 290, 647, 667, 1294, 1334, 3235, 3335, 4663, 6470, 6670, 9326, 14881, 18763, 23315, 29762, 37526, 46630, 74405, 93815, 107249, 135227, 148810, 187630, 214498, 270454, 431549, 536245, 676135, 863098, 1072490, 1352270, 2157745, 3016961, 3110221, 4315490, 6033922, 6220442, 15084805, 15551105, 30169610, 31102210, 69390103, 87491869, 138780206, 174983738, 346950515, 437459345, 693901030, 874918690, 2012312987, 4024625974, 10061564935, 20123129870]

約数ペア:

[(1, 20123129870), (2, 10061564935), (5, 4024625974), (10, 2012312987), (23, 874918690), (29, 693901030), (46, 437459345), (58, 346950515), (115, 174983738), (145, 138780206), (230, 87491869), (290, 69390103), (647, 31102210), (667, 30169610), (1294, 15551105), (1334, 15084805), (3235, 6220442), (3335, 6033922), (4663, 4315490), (6470, 3110221), (6670, 3016961), (9326, 2157745), (14881, 1352270), (18763, 1072490), (23315, 863098), (29762, 676135), (37526, 536245), (46630, 431549), (74405, 270454), (93815, 214498), (107249, 187630), (135227, 148810)]