13690220

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{311}}^1$

素因数の和:422

約数の個数: 48

約数和(自身を含む): 30191616

約数和(自身を除く): 16501396

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 71, 124, 142, 155, 284, 310, 311, 355, 620, 622, 710, 1244, 1420, 1555, 2201, 3110, 4402, 6220, 8804, 9641, 11005, 19282, 22010, 22081, 38564, 44020, 44162, 48205, 88324, 96410, 110405, 192820, 220810, 441620, 684511, 1369022, 2738044, 3422555, 6845110, 13690220]

約数ペア:

[(1, 13690220), (2, 6845110), (4, 3422555), (5, 2738044), (10, 1369022), (20, 684511), (31, 441620), (62, 220810), (71, 192820), (124, 110405), (142, 96410), (155, 88324), (284, 48205), (310, 44162), (311, 44020), (355, 38564), (620, 22081), (622, 22010), (710, 19282), (1244, 11005), (1420, 9641), (1555, 8804), (2201, 6220), (3110, 4402)]