20802416

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{1669}}^1$

素因数の和:1737

約数の個数: 40

約数和(自身を含む): 43486800

約数和(自身を除く): 22684384

約数列:

[1, 2, 4, 8, 16, 19, 38, 41, 76, 82, 152, 164, 304, 328, 656, 779, 1558, 1669, 3116, 3338, 6232, 6676, 12464, 13352, 26704, 31711, 63422, 68429, 126844, 136858, 253688, 273716, 507376, 547432, 1094864, 1300151, 2600302, 5200604, 10401208, 20802416]

約数ペア:

[(1, 20802416), (2, 10401208), (4, 5200604), (8, 2600302), (16, 1300151), (19, 1094864), (38, 547432), (41, 507376), (76, 273716), (82, 253688), (152, 136858), (164, 126844), (304, 68429), (328, 63422), (656, 31711), (779, 26704), (1558, 13352), (1669, 12464), (3116, 6676), (3338, 6232)]