55990020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{257}}^1\times {\mathrm{3631}}^1$

素因数の和:3900

約数の個数: 48

約数和(自身を含む): 157425408

約数和(自身を除く): 101435388

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 257, 514, 771, 1028, 1285, 1542, 2570, 3084, 3631, 3855, 5140, 7262, 7710, 10893, 14524, 15420, 18155, 21786, 36310, 43572, 54465, 72620, 108930, 217860, 933167, 1866334, 2799501, 3732668, 4665835, 5599002, 9331670, 11198004, 13997505, 18663340, 27995010, 55990020]

約数ペア:

[(1, 55990020), (2, 27995010), (3, 18663340), (4, 13997505), (5, 11198004), (6, 9331670), (10, 5599002), (12, 4665835), (15, 3732668), (20, 2799501), (30, 1866334), (60, 933167), (257, 217860), (514, 108930), (771, 72620), (1028, 54465), (1285, 43572), (1542, 36310), (2570, 21786), (3084, 18155), (3631, 15420), (3855, 14524), (5140, 10893), (7262, 7710)]