18874760

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{677}}^1$

素因数の和:746

約数の個数: 64

約数和(自身を含む): 46131120

約数和(自身を除く): 27256360

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 41, 68, 82, 85, 136, 164, 170, 205, 328, 340, 410, 677, 680, 697, 820, 1354, 1394, 1640, 2708, 2788, 3385, 3485, 5416, 5576, 6770, 6970, 11509, 13540, 13940, 23018, 27080, 27757, 27880, 46036, 55514, 57545, 92072, 111028, 115090, 138785, 222056, 230180, 277570, 460360, 471869, 555140, 943738, 1110280, 1887476, 2359345, 3774952, 4718690, 9437380, 18874760]

約数ペア:

[(1, 18874760), (2, 9437380), (4, 4718690), (5, 3774952), (8, 2359345), (10, 1887476), (17, 1110280), (20, 943738), (34, 555140), (40, 471869), (41, 460360), (68, 277570), (82, 230180), (85, 222056), (136, 138785), (164, 115090), (170, 111028), (205, 92072), (328, 57545), (340, 55514), (410, 46036), (677, 27880), (680, 27757), (697, 27080), (820, 23018), (1354, 13940), (1394, 13540), (1640, 11509), (2708, 6970), (2788, 6770), (3385, 5576), (3485, 5416)]