31098420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{877}}^1$

素因数の和:1089

約数の個数: 72

約数和(自身を含む): 94918824

約数和(自身を除く): 63820404

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 197, 394, 591, 788, 877, 985, 1182, 1754, 1773, 1970, 2364, 2631, 2955, 3508, 3546, 3940, 4385, 5262, 5910, 7092, 7893, 8770, 8865, 10524, 11820, 13155, 15786, 17540, 17730, 26310, 31572, 35460, 39465, 52620, 78930, 157860, 172769, 345538, 518307, 691076, 863845, 1036614, 1554921, 1727690, 2073228, 2591535, 3109842, 3455380, 5183070, 6219684, 7774605, 10366140, 15549210, 31098420]

約数ペア:

[(1, 31098420), (2, 15549210), (3, 10366140), (4, 7774605), (5, 6219684), (6, 5183070), (9, 3455380), (10, 3109842), (12, 2591535), (15, 2073228), (18, 1727690), (20, 1554921), (30, 1036614), (36, 863845), (45, 691076), (60, 518307), (90, 345538), (180, 172769), (197, 157860), (394, 78930), (591, 52620), (788, 39465), (877, 35460), (985, 31572), (1182, 26310), (1754, 17730), (1773, 17540), (1970, 15786), (2364, 13155), (2631, 11820), (2955, 10524), (3508, 8865), (3546, 8770), (3940, 7893), (4385, 7092), (5262, 5910)]