20648170

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{1549}}^1$

素因数の和:1630

約数の個数: 32

約数和(自身を含む): 39283200

約数和(自身を除く): 18635030

約数列:

[1, 2, 5, 10, 31, 43, 62, 86, 155, 215, 310, 430, 1333, 1549, 2666, 3098, 6665, 7745, 13330, 15490, 48019, 66607, 96038, 133214, 240095, 333035, 480190, 666070, 2064817, 4129634, 10324085, 20648170]

約数ペア:

[(1, 20648170), (2, 10324085), (5, 4129634), (10, 2064817), (31, 666070), (43, 480190), (62, 333035), (86, 240095), (155, 133214), (215, 96038), (310, 66607), (430, 48019), (1333, 15490), (1549, 13330), (2666, 7745), (3098, 6665)]