20178700464

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{1607}}^1\times {\mathrm{20123}}^1$

素因数の和:21754

約数の個数: 80

約数和(自身を含む): 56175904512

約数和(自身を除く): 35997204048

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 78, 104, 156, 208, 312, 624, 1607, 3214, 4821, 6428, 9642, 12856, 19284, 20123, 20891, 25712, 38568, 40246, 41782, 60369, 62673, 77136, 80492, 83564, 120738, 125346, 160984, 167128, 241476, 250692, 261599, 321968, 334256, 482952, 501384, 523198, 784797, 965904, 1002768, 1046396, 1569594, 2092792, 3139188, 4185584, 6278376, 12556752, 32337661, 64675322, 97012983, 129350644, 194025966, 258701288, 388051932, 420389593, 517402576, 776103864, 840779186, 1261168779, 1552207728, 1681558372, 2522337558, 3363116744, 5044675116, 6726233488, 10089350232, 20178700464]

約数ペア:

[(1, 20178700464), (2, 10089350232), (3, 6726233488), (4, 5044675116), (6, 3363116744), (8, 2522337558), (12, 1681558372), (13, 1552207728), (16, 1261168779), (24, 840779186), (26, 776103864), (39, 517402576), (48, 420389593), (52, 388051932), (78, 258701288), (104, 194025966), (156, 129350644), (208, 97012983), (312, 64675322), (624, 32337661), (1607, 12556752), (3214, 6278376), (4821, 4185584), (6428, 3139188), (9642, 2092792), (12856, 1569594), (19284, 1046396), (20123, 1002768), (20891, 965904), (25712, 784797), (38568, 523198), (40246, 501384), (41782, 482952), (60369, 334256), (62673, 321968), (77136, 261599), (80492, 250692), (83564, 241476), (120738, 167128), (125346, 160984)]