78442720

素因数分解:

$2^5\times 5^1\times {\mathrm{490267}}^1$

素因数の和:490282

約数の個数: 24

約数和(自身を含む): 185321304

約数和(自身を除く): 106878584

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 490267, 980534, 1961068, 2451335, 3922136, 4902670, 7844272, 9805340, 15688544, 19610680, 39221360, 78442720]

約数ペア:

[(1, 78442720), (2, 39221360), (4, 19610680), (5, 15688544), (8, 9805340), (10, 7844272), (16, 4902670), (20, 3922136), (32, 2451335), (40, 1961068), (80, 980534), (160, 490267)]