31220820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{5981}}^1$

素因数の和:6025

約数の個数: 72

約数和(自身を含む): 97985160

約数和(自身を除く): 66764340

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 29, 30, 36, 45, 58, 60, 87, 90, 116, 145, 174, 180, 261, 290, 348, 435, 522, 580, 870, 1044, 1305, 1740, 2610, 5220, 5981, 11962, 17943, 23924, 29905, 35886, 53829, 59810, 71772, 89715, 107658, 119620, 173449, 179430, 215316, 269145, 346898, 358860, 520347, 538290, 693796, 867245, 1040694, 1076580, 1561041, 1734490, 2081388, 2601735, 3122082, 3468980, 5203470, 6244164, 7805205, 10406940, 15610410, 31220820]

約数ペア:

[(1, 31220820), (2, 15610410), (3, 10406940), (4, 7805205), (5, 6244164), (6, 5203470), (9, 3468980), (10, 3122082), (12, 2601735), (15, 2081388), (18, 1734490), (20, 1561041), (29, 1076580), (30, 1040694), (36, 867245), (45, 693796), (58, 538290), (60, 520347), (87, 358860), (90, 346898), (116, 269145), (145, 215316), (174, 179430), (180, 173449), (261, 119620), (290, 107658), (348, 89715), (435, 71772), (522, 59810), (580, 53829), (870, 35886), (1044, 29905), (1305, 23924), (1740, 17943), (2610, 11962), (5220, 5981)]