20131543840

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{86357}}^1$

素因数の和:86450

約数の個数: 96

約数和(自身を含む): 50140145664

約数和(自身を除く): 30008601824

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 47, 62, 80, 94, 124, 155, 160, 188, 235, 248, 310, 376, 470, 496, 620, 752, 940, 992, 1240, 1457, 1504, 1880, 2480, 2914, 3760, 4960, 5828, 7285, 7520, 11656, 14570, 23312, 29140, 46624, 58280, 86357, 116560, 172714, 233120, 345428, 431785, 690856, 863570, 1381712, 1727140, 2677067, 2763424, 3454280, 4058779, 5354134, 6908560, 8117558, 10708268, 13385335, 13817120, 16235116, 20293895, 21416536, 26770670, 32470232, 40587790, 42833072, 53541340, 64940464, 81175580, 85666144, 107082680, 125822149, 129880928, 162351160, 214165360, 251644298, 324702320, 428330720, 503288596, 629110745, 649404640, 1006577192, 1258221490, 2013154384, 2516442980, 4026308768, 5032885960, 10065771920, 20131543840]

約数ペア:

[(1, 20131543840), (2, 10065771920), (4, 5032885960), (5, 4026308768), (8, 2516442980), (10, 2013154384), (16, 1258221490), (20, 1006577192), (31, 649404640), (32, 629110745), (40, 503288596), (47, 428330720), (62, 324702320), (80, 251644298), (94, 214165360), (124, 162351160), (155, 129880928), (160, 125822149), (188, 107082680), (235, 85666144), (248, 81175580), (310, 64940464), (376, 53541340), (470, 42833072), (496, 40587790), (620, 32470232), (752, 26770670), (940, 21416536), (992, 20293895), (1240, 16235116), (1457, 13817120), (1504, 13385335), (1880, 10708268), (2480, 8117558), (2914, 6908560), (3760, 5354134), (4960, 4058779), (5828, 3454280), (7285, 2763424), (7520, 2677067), (11656, 1727140), (14570, 1381712), (23312, 863570), (29140, 690856), (46624, 431785), (58280, 345428), (86357, 233120), (116560, 172714)]