20803580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{8741}}^1$

素因数の和:8774

約数の個数: 48

約数和(自身を含む): 52871616

約数和(自身を除く): 32068036

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 85, 119, 140, 170, 238, 340, 476, 595, 1190, 2380, 8741, 17482, 34964, 43705, 61187, 87410, 122374, 148597, 174820, 244748, 297194, 305935, 594388, 611870, 742985, 1040179, 1223740, 1485970, 2080358, 2971940, 4160716, 5200895, 10401790, 20803580]

約数ペア:

[(1, 20803580), (2, 10401790), (4, 5200895), (5, 4160716), (7, 2971940), (10, 2080358), (14, 1485970), (17, 1223740), (20, 1040179), (28, 742985), (34, 611870), (35, 594388), (68, 305935), (70, 297194), (85, 244748), (119, 174820), (140, 148597), (170, 122374), (238, 87410), (340, 61187), (476, 43705), (595, 34964), (1190, 17482), (2380, 8741)]