31486140

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{24989}}^1$

素因数の和:25011

約数の個数: 72

約数和(自身を含む): 109156320

約数和(自身を除く): 77670180

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 24989, 49978, 74967, 99956, 124945, 149934, 174923, 224901, 249890, 299868, 349846, 374835, 449802, 499780, 524769, 699692, 749670, 874615, 899604, 1049538, 1124505, 1499340, 1574307, 1749230, 2099076, 2249010, 2623845, 3148614, 3498460, 4498020, 5247690, 6297228, 7871535, 10495380, 15743070, 31486140]

約数ペア:

[(1, 31486140), (2, 15743070), (3, 10495380), (4, 7871535), (5, 6297228), (6, 5247690), (7, 4498020), (9, 3498460), (10, 3148614), (12, 2623845), (14, 2249010), (15, 2099076), (18, 1749230), (20, 1574307), (21, 1499340), (28, 1124505), (30, 1049538), (35, 899604), (36, 874615), (42, 749670), (45, 699692), (60, 524769), (63, 499780), (70, 449802), (84, 374835), (90, 349846), (105, 299868), (126, 249890), (140, 224901), (180, 174923), (210, 149934), (252, 124945), (315, 99956), (420, 74967), (630, 49978), (1260, 24989)]