81371970

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31177}}^1$

素因数の和:31219

約数の個数: 48

約数和(自身を含む): 218869560

約数和(自身を除く): 137497590

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 29, 30, 45, 58, 87, 90, 145, 174, 261, 290, 435, 522, 870, 1305, 2610, 31177, 62354, 93531, 155885, 187062, 280593, 311770, 467655, 561186, 904133, 935310, 1402965, 1808266, 2712399, 2805930, 4520665, 5424798, 8137197, 9041330, 13561995, 16274394, 27123990, 40685985, 81371970]

約数ペア:

[(1, 81371970), (2, 40685985), (3, 27123990), (5, 16274394), (6, 13561995), (9, 9041330), (10, 8137197), (15, 5424798), (18, 4520665), (29, 2805930), (30, 2712399), (45, 1808266), (58, 1402965), (87, 935310), (90, 904133), (145, 561186), (174, 467655), (261, 311770), (290, 280593), (435, 187062), (522, 155885), (870, 93531), (1305, 62354), (2610, 31177)]