28330980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1$

素因数の和:273

約数の個数: 96

約数和(自身を含む): 82790400

約数和(自身を除く): 54459420

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 43, 60, 79, 86, 129, 139, 158, 172, 215, 237, 258, 278, 316, 395, 417, 430, 474, 516, 556, 645, 695, 790, 834, 860, 948, 1185, 1290, 1390, 1580, 1668, 2085, 2370, 2580, 2780, 3397, 4170, 4740, 5977, 6794, 8340, 10191, 10981, 11954, 13588, 16985, 17931, 20382, 21962, 23908, 29885, 32943, 33970, 35862, 40764, 43924, 50955, 54905, 59770, 65886, 67940, 71724, 89655, 101910, 109810, 119540, 131772, 164715, 179310, 203820, 219620, 329430, 358620, 472183, 658860, 944366, 1416549, 1888732, 2360915, 2833098, 4721830, 5666196, 7082745, 9443660, 14165490, 28330980]

約数ペア:

[(1, 28330980), (2, 14165490), (3, 9443660), (4, 7082745), (5, 5666196), (6, 4721830), (10, 2833098), (12, 2360915), (15, 1888732), (20, 1416549), (30, 944366), (43, 658860), (60, 472183), (79, 358620), (86, 329430), (129, 219620), (139, 203820), (158, 179310), (172, 164715), (215, 131772), (237, 119540), (258, 109810), (278, 101910), (316, 89655), (395, 71724), (417, 67940), (430, 65886), (474, 59770), (516, 54905), (556, 50955), (645, 43924), (695, 40764), (790, 35862), (834, 33970), (860, 32943), (948, 29885), (1185, 23908), (1290, 21962), (1390, 20382), (1580, 17931), (1668, 16985), (2085, 13588), (2370, 11954), (2580, 10981), (2780, 10191), (3397, 8340), (4170, 6794), (4740, 5977)]