28555870

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{179}}^1$

素因数の和:289

約数の個数: 64

約数和(自身を含む): 61585920

約数和(自身を除く): 33030050

約数列:

[1, 2, 5, 7, 10, 14, 35, 43, 53, 70, 86, 106, 179, 215, 265, 301, 358, 371, 430, 530, 602, 742, 895, 1253, 1505, 1790, 1855, 2279, 2506, 3010, 3710, 4558, 6265, 7697, 9487, 11395, 12530, 15394, 15953, 18974, 22790, 31906, 38485, 47435, 53879, 66409, 76970, 79765, 94870, 107758, 132818, 159530, 269395, 332045, 407941, 538790, 664090, 815882, 2039705, 2855587, 4079410, 5711174, 14277935, 28555870]

約数ペア:

[(1, 28555870), (2, 14277935), (5, 5711174), (7, 4079410), (10, 2855587), (14, 2039705), (35, 815882), (43, 664090), (53, 538790), (70, 407941), (86, 332045), (106, 269395), (179, 159530), (215, 132818), (265, 107758), (301, 94870), (358, 79765), (371, 76970), (430, 66409), (530, 53879), (602, 47435), (742, 38485), (895, 31906), (1253, 22790), (1505, 18974), (1790, 15953), (1855, 15394), (2279, 12530), (2506, 11395), (3010, 9487), (3710, 7697), (4558, 6265)]