18516680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{5087}}^1$

素因数の和:5118

約数の個数: 64

約数和(自身を含む): 51287040

約数和(自身を除く): 32770360

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, 5087, 10174, 20348, 25435, 35609, 40696, 50870, 66131, 71218, 101740, 132262, 142436, 178045, 203480, 264524, 284872, 330655, 356090, 462917, 529048, 661310, 712180, 925834, 1322620, 1424360, 1851668, 2314585, 2645240, 3703336, 4629170, 9258340, 18516680]

約数ペア:

[(1, 18516680), (2, 9258340), (4, 4629170), (5, 3703336), (7, 2645240), (8, 2314585), (10, 1851668), (13, 1424360), (14, 1322620), (20, 925834), (26, 712180), (28, 661310), (35, 529048), (40, 462917), (52, 356090), (56, 330655), (65, 284872), (70, 264524), (91, 203480), (104, 178045), (130, 142436), (140, 132262), (182, 101740), (260, 71218), (280, 66131), (364, 50870), (455, 40696), (520, 35609), (728, 25435), (910, 20348), (1820, 10174), (3640, 5087)]