20971250

素因数分解:

$2^1\times 5^4\times {\mathrm{19}}^1\times {\mathrm{883}}^1$

素因数の和:924

約数の個数: 40

約数和(自身を含む): 41424240

約数和(自身を除く): 20452990

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 95, 125, 190, 250, 475, 625, 883, 950, 1250, 1766, 2375, 4415, 4750, 8830, 11875, 16777, 22075, 23750, 33554, 44150, 83885, 110375, 167770, 220750, 419425, 551875, 838850, 1103750, 2097125, 4194250, 10485625, 20971250]

約数ペア:

[(1, 20971250), (2, 10485625), (5, 4194250), (10, 2097125), (19, 1103750), (25, 838850), (38, 551875), (50, 419425), (95, 220750), (125, 167770), (190, 110375), (250, 83885), (475, 44150), (625, 33554), (883, 23750), (950, 22075), (1250, 16777), (1766, 11875), (2375, 8830), (4415, 4750)]