89981840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2791}}^1$

素因数の和:2848

約数の個数: 80

約数和(自身を含む): 232651776

約数和(自身を除く): 142669936

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 104, 124, 130, 155, 208, 248, 260, 310, 403, 496, 520, 620, 806, 1040, 1240, 1612, 2015, 2480, 2791, 3224, 4030, 5582, 6448, 8060, 11164, 13955, 16120, 22328, 27910, 32240, 36283, 44656, 55820, 72566, 86521, 111640, 145132, 173042, 181415, 223280, 290264, 346084, 362830, 432605, 580528, 692168, 725660, 865210, 1124773, 1384336, 1451320, 1730420, 2249546, 2902640, 3460840, 4499092, 5623865, 6921680, 8998184, 11247730, 17996368, 22495460, 44990920, 89981840]

約数ペア:

[(1, 89981840), (2, 44990920), (4, 22495460), (5, 17996368), (8, 11247730), (10, 8998184), (13, 6921680), (16, 5623865), (20, 4499092), (26, 3460840), (31, 2902640), (40, 2249546), (52, 1730420), (62, 1451320), (65, 1384336), (80, 1124773), (104, 865210), (124, 725660), (130, 692168), (155, 580528), (208, 432605), (248, 362830), (260, 346084), (310, 290264), (403, 223280), (496, 181415), (520, 173042), (620, 145132), (806, 111640), (1040, 86521), (1240, 72566), (1612, 55820), (2015, 44656), (2480, 36283), (2791, 32240), (3224, 27910), (4030, 22328), (5582, 16120), (6448, 13955), (8060, 11164)]