170389780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{181}}^1\times {\mathrm{389}}^1$

素因数の和:601

約数の個数: 72

約数和(自身を含む): 396494280

約数和(自身を除く): 226104500

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 181, 220, 242, 362, 389, 484, 605, 724, 778, 905, 1210, 1556, 1810, 1945, 1991, 2420, 3620, 3890, 3982, 4279, 7780, 7964, 8558, 9955, 17116, 19910, 21395, 21901, 39820, 42790, 43802, 47069, 70409, 85580, 87604, 94138, 109505, 140818, 188276, 219010, 235345, 281636, 352045, 438020, 470690, 704090, 774499, 941380, 1408180, 1548998, 3097996, 3872495, 7744990, 8519489, 15489980, 17038978, 34077956, 42597445, 85194890, 170389780]

約数ペア:

[(1, 170389780), (2, 85194890), (4, 42597445), (5, 34077956), (10, 17038978), (11, 15489980), (20, 8519489), (22, 7744990), (44, 3872495), (55, 3097996), (110, 1548998), (121, 1408180), (181, 941380), (220, 774499), (242, 704090), (362, 470690), (389, 438020), (484, 352045), (605, 281636), (724, 235345), (778, 219010), (905, 188276), (1210, 140818), (1556, 109505), (1810, 94138), (1945, 87604), (1991, 85580), (2420, 70409), (3620, 47069), (3890, 43802), (3982, 42790), (4279, 39820), (7780, 21901), (7964, 21395), (8558, 19910), (9955, 17116)]