28216968

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{90439}}^1$

素因数の和:90461

約数の個数: 32

約数和(自身を含む): 75969600

約数和(自身を除く): 47752632

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 90439, 180878, 271317, 361756, 542634, 723512, 1085268, 1175707, 2170536, 2351414, 3527121, 4702828, 7054242, 9405656, 14108484, 28216968]

約数ペア:

[(1, 28216968), (2, 14108484), (3, 9405656), (4, 7054242), (6, 4702828), (8, 3527121), (12, 2351414), (13, 2170536), (24, 1175707), (26, 1085268), (39, 723512), (52, 542634), (78, 361756), (104, 271317), (156, 180878), (312, 90439)]