28957812

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^2\times {\mathrm{109}}^1\times {\mathrm{131}}^1$

素因数の和:273

約数の個数: 72

約数和(自身を含む): 74400480

約数和(自身を除く): 45442668

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 109, 131, 156, 169, 218, 262, 327, 338, 393, 436, 507, 524, 654, 676, 786, 1014, 1308, 1417, 1572, 1703, 2028, 2834, 3406, 4251, 5109, 5668, 6812, 8502, 10218, 14279, 17004, 18421, 20436, 22139, 28558, 36842, 42837, 44278, 55263, 57116, 66417, 73684, 85674, 88556, 110526, 132834, 171348, 185627, 221052, 265668, 371254, 556881, 742508, 1113762, 2227524, 2413151, 4826302, 7239453, 9652604, 14478906, 28957812]

約数ペア:

[(1, 28957812), (2, 14478906), (3, 9652604), (4, 7239453), (6, 4826302), (12, 2413151), (13, 2227524), (26, 1113762), (39, 742508), (52, 556881), (78, 371254), (109, 265668), (131, 221052), (156, 185627), (169, 171348), (218, 132834), (262, 110526), (327, 88556), (338, 85674), (393, 73684), (436, 66417), (507, 57116), (524, 55263), (654, 44278), (676, 42837), (786, 36842), (1014, 28558), (1308, 22139), (1417, 20436), (1572, 18421), (1703, 17004), (2028, 14279), (2834, 10218), (3406, 8502), (4251, 6812), (5109, 5668)]