51684040

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{7927}}^1$

素因数の和:8101

約数の個数: 32

約数和(自身を含む): 117017280

約数和(自身を除く): 65333240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 3260, 6520, 7927, 15854, 31708, 39635, 63416, 79270, 158540, 317080, 1292101, 2584202, 5168404, 6460505, 10336808, 12921010, 25842020, 51684040]

約数ペア:

[(1, 51684040), (2, 25842020), (4, 12921010), (5, 10336808), (8, 6460505), (10, 5168404), (20, 2584202), (40, 1292101), (163, 317080), (326, 158540), (652, 79270), (815, 63416), (1304, 39635), (1630, 31708), (3260, 15854), (6520, 7927)]