28654180

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{1187}}^1$

素因数の和:1284

約数の個数: 48

約数和(自身を含む): 64665216

約数和(自身を除く): 36011036

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 71, 85, 142, 170, 284, 340, 355, 710, 1187, 1207, 1420, 2374, 2414, 4748, 4828, 5935, 6035, 11870, 12070, 20179, 23740, 24140, 40358, 80716, 84277, 100895, 168554, 201790, 337108, 403580, 421385, 842770, 1432709, 1685540, 2865418, 5730836, 7163545, 14327090, 28654180]

約数ペア:

[(1, 28654180), (2, 14327090), (4, 7163545), (5, 5730836), (10, 2865418), (17, 1685540), (20, 1432709), (34, 842770), (68, 421385), (71, 403580), (85, 337108), (142, 201790), (170, 168554), (284, 100895), (340, 84277), (355, 80716), (710, 40358), (1187, 24140), (1207, 23740), (1420, 20179), (2374, 12070), (2414, 11870), (4748, 6035), (4828, 5935)]