18043480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{4957}}^1$

素因数の和:4988

約数の個数: 64

約数和(自身を含む): 49976640

約数和(自身を除く): 31933160

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 260, 280, 364, 455, 520, 728, 910, 1820, 3640, 4957, 9914, 19828, 24785, 34699, 39656, 49570, 64441, 69398, 99140, 128882, 138796, 173495, 198280, 257764, 277592, 322205, 346990, 451087, 515528, 644410, 693980, 902174, 1288820, 1387960, 1804348, 2255435, 2577640, 3608696, 4510870, 9021740, 18043480]

約数ペア:

[(1, 18043480), (2, 9021740), (4, 4510870), (5, 3608696), (7, 2577640), (8, 2255435), (10, 1804348), (13, 1387960), (14, 1288820), (20, 902174), (26, 693980), (28, 644410), (35, 515528), (40, 451087), (52, 346990), (56, 322205), (65, 277592), (70, 257764), (91, 198280), (104, 173495), (130, 138796), (140, 128882), (182, 99140), (260, 69398), (280, 64441), (364, 49570), (455, 39656), (520, 34699), (728, 24785), (910, 19828), (1820, 9914), (3640, 4957)]