31580120

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{5521}}^1$

素因数の和:5556

約数の個数: 64

約数和(自身を含む): 83492640

約数和(自身を除く): 51912520

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 52, 55, 65, 88, 104, 110, 130, 143, 220, 260, 286, 440, 520, 572, 715, 1144, 1430, 2860, 5521, 5720, 11042, 22084, 27605, 44168, 55210, 60731, 71773, 110420, 121462, 143546, 220840, 242924, 287092, 303655, 358865, 485848, 574184, 607310, 717730, 789503, 1214620, 1435460, 1579006, 2429240, 2870920, 3158012, 3947515, 6316024, 7895030, 15790060, 31580120]

約数ペア:

[(1, 31580120), (2, 15790060), (4, 7895030), (5, 6316024), (8, 3947515), (10, 3158012), (11, 2870920), (13, 2429240), (20, 1579006), (22, 1435460), (26, 1214620), (40, 789503), (44, 717730), (52, 607310), (55, 574184), (65, 485848), (88, 358865), (104, 303655), (110, 287092), (130, 242924), (143, 220840), (220, 143546), (260, 121462), (286, 110420), (440, 71773), (520, 60731), (572, 55210), (715, 44168), (1144, 27605), (1430, 22084), (2860, 11042), (5521, 5720)]