13455280

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{2129}}^1$

素因数の和:2221

約数の個数: 40

約数和(自身を含む): 31694400

約数和(自身を除く): 18239120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 790, 1264, 1580, 2129, 3160, 4258, 6320, 8516, 10645, 17032, 21290, 34064, 42580, 85160, 168191, 170320, 336382, 672764, 840955, 1345528, 1681910, 2691056, 3363820, 6727640, 13455280]

約数ペア:

[(1, 13455280), (2, 6727640), (4, 3363820), (5, 2691056), (8, 1681910), (10, 1345528), (16, 840955), (20, 672764), (40, 336382), (79, 170320), (80, 168191), (158, 85160), (316, 42580), (395, 34064), (632, 21290), (790, 17032), (1264, 10645), (1580, 8516), (2129, 6320), (3160, 4258)]