20434720

素因数分解:

$2^5\times 5^1\times {\mathrm{127717}}^1$

素因数の和:127732

約数の個数: 24

約数和(自身を含む): 48277404

約数和(自身を除く): 27842684

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 127717, 255434, 510868, 638585, 1021736, 1277170, 2043472, 2554340, 4086944, 5108680, 10217360, 20434720]

約数ペア:

[(1, 20434720), (2, 10217360), (4, 5108680), (5, 4086944), (8, 2554340), (10, 2043472), (16, 1277170), (20, 1021736), (32, 638585), (40, 510868), (80, 255434), (160, 127717)]