19889830

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{1481}}^1$

素因数の和:1584

約数の個数: 32

約数和(自身を含む): 38413440

約数和(自身を除く): 18523610

約数列:

[1, 2, 5, 10, 17, 34, 79, 85, 158, 170, 395, 790, 1343, 1481, 2686, 2962, 6715, 7405, 13430, 14810, 25177, 50354, 116999, 125885, 233998, 251770, 584995, 1169990, 1988983, 3977966, 9944915, 19889830]

約数ペア:

[(1, 19889830), (2, 9944915), (5, 3977966), (10, 1988983), (17, 1169990), (34, 584995), (79, 251770), (85, 233998), (158, 125885), (170, 116999), (395, 50354), (790, 25177), (1343, 14810), (1481, 13430), (2686, 7405), (2962, 6715)]