20280364

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{5821}}^1$

素因数の和:5905

約数の個数: 24

約数和(自身を含む): 38797808

約数和(自身を除く): 18517444

約数列:

[1, 2, 4, 13, 26, 52, 67, 134, 268, 871, 1742, 3484, 5821, 11642, 23284, 75673, 151346, 302692, 390007, 780014, 1560028, 5070091, 10140182, 20280364]

約数ペア:

[(1, 20280364), (2, 10140182), (4, 5070091), (13, 1560028), (26, 780014), (52, 390007), (67, 302692), (134, 151346), (268, 75673), (871, 23284), (1742, 11642), (3484, 5821)]