19747620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{3539}}^1$

素因数の和:3585

約数の個数: 72

約数和(自身を含む): 61850880

約数和(自身を除く): 42103260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 62, 90, 93, 124, 155, 180, 186, 279, 310, 372, 465, 558, 620, 930, 1116, 1395, 1860, 2790, 3539, 5580, 7078, 10617, 14156, 17695, 21234, 31851, 35390, 42468, 53085, 63702, 70780, 106170, 109709, 127404, 159255, 212340, 219418, 318510, 329127, 438836, 548545, 637020, 658254, 987381, 1097090, 1316508, 1645635, 1974762, 2194180, 3291270, 3949524, 4936905, 6582540, 9873810, 19747620]

約数ペア:

[(1, 19747620), (2, 9873810), (3, 6582540), (4, 4936905), (5, 3949524), (6, 3291270), (9, 2194180), (10, 1974762), (12, 1645635), (15, 1316508), (18, 1097090), (20, 987381), (30, 658254), (31, 637020), (36, 548545), (45, 438836), (60, 329127), (62, 318510), (90, 219418), (93, 212340), (124, 159255), (155, 127404), (180, 109709), (186, 106170), (279, 70780), (310, 63702), (372, 53085), (465, 42468), (558, 35390), (620, 31851), (930, 21234), (1116, 17695), (1395, 14156), (1860, 10617), (2790, 7078), (3539, 5580)]