81845220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{487}}^1\times {\mathrm{2801}}^1$

素因数の和:3300

約数の個数: 48

約数和(自身を含む): 229719168

約数和(自身を除く): 147873948

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 487, 974, 1461, 1948, 2435, 2801, 2922, 4870, 5602, 5844, 7305, 8403, 9740, 11204, 14005, 14610, 16806, 28010, 29220, 33612, 42015, 56020, 84030, 168060, 1364087, 2728174, 4092261, 5456348, 6820435, 8184522, 13640870, 16369044, 20461305, 27281740, 40922610, 81845220]

約数ペア:

[(1, 81845220), (2, 40922610), (3, 27281740), (4, 20461305), (5, 16369044), (6, 13640870), (10, 8184522), (12, 6820435), (15, 5456348), (20, 4092261), (30, 2728174), (60, 1364087), (487, 168060), (974, 84030), (1461, 56020), (1948, 42015), (2435, 33612), (2801, 29220), (2922, 28010), (4870, 16806), (5602, 14610), (5844, 14005), (7305, 11204), (8403, 9740)]