31070480

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{491}}^1$

素因数の和:624

約数の個数: 80

約数和(自身を含む): 83458944

約数和(自身を除く): 52388464

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 113, 140, 226, 280, 452, 491, 560, 565, 791, 904, 982, 1130, 1582, 1808, 1964, 2260, 2455, 3164, 3437, 3928, 3955, 4520, 4910, 6328, 6874, 7856, 7910, 9040, 9820, 12656, 13748, 15820, 17185, 19640, 27496, 31640, 34370, 39280, 54992, 55483, 63280, 68740, 110966, 137480, 221932, 274960, 277415, 388381, 443864, 554830, 776762, 887728, 1109660, 1553524, 1941905, 2219320, 3107048, 3883810, 4438640, 6214096, 7767620, 15535240, 31070480]

約数ペア:

[(1, 31070480), (2, 15535240), (4, 7767620), (5, 6214096), (7, 4438640), (8, 3883810), (10, 3107048), (14, 2219320), (16, 1941905), (20, 1553524), (28, 1109660), (35, 887728), (40, 776762), (56, 554830), (70, 443864), (80, 388381), (112, 277415), (113, 274960), (140, 221932), (226, 137480), (280, 110966), (452, 68740), (491, 63280), (560, 55483), (565, 54992), (791, 39280), (904, 34370), (982, 31640), (1130, 27496), (1582, 19640), (1808, 17185), (1964, 15820), (2260, 13748), (2455, 12656), (3164, 9820), (3437, 9040), (3928, 7910), (3955, 7856), (4520, 6874), (4910, 6328)]