17990440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1193}}^1$

素因数の和:1246

約数の個数: 64

約数和(自身を含む): 45133200

約数和(自身を除く): 27142760

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 29, 40, 52, 58, 65, 104, 116, 130, 145, 232, 260, 290, 377, 520, 580, 754, 1160, 1193, 1508, 1885, 2386, 3016, 3770, 4772, 5965, 7540, 9544, 11930, 15080, 15509, 23860, 31018, 34597, 47720, 62036, 69194, 77545, 124072, 138388, 155090, 172985, 276776, 310180, 345970, 449761, 620360, 691940, 899522, 1383880, 1799044, 2248805, 3598088, 4497610, 8995220, 17990440]

約数ペア:

[(1, 17990440), (2, 8995220), (4, 4497610), (5, 3598088), (8, 2248805), (10, 1799044), (13, 1383880), (20, 899522), (26, 691940), (29, 620360), (40, 449761), (52, 345970), (58, 310180), (65, 276776), (104, 172985), (116, 155090), (130, 138388), (145, 124072), (232, 77545), (260, 69194), (290, 62036), (377, 47720), (520, 34597), (580, 31018), (754, 23860), (1160, 15509), (1193, 15080), (1508, 11930), (1885, 9544), (2386, 7540), (3016, 5965), (3770, 4772)]