28212015

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{359}}^1$

素因数の和:424

約数の個数: 48

約数和(自身を含む): 50595840

約数和(自身を除く): 22383825

約数列:

[1, 3, 5, 13, 15, 31, 39, 65, 93, 155, 169, 195, 359, 403, 465, 507, 845, 1077, 1209, 1795, 2015, 2535, 4667, 5239, 5385, 6045, 11129, 14001, 15717, 23335, 26195, 33387, 55645, 60671, 70005, 78585, 144677, 166935, 182013, 303355, 434031, 723385, 910065, 1880801, 2170155, 5642403, 9404005, 28212015]

約数ペア:

[(1, 28212015), (3, 9404005), (5, 5642403), (13, 2170155), (15, 1880801), (31, 910065), (39, 723385), (65, 434031), (93, 303355), (155, 182013), (169, 166935), (195, 144677), (359, 78585), (403, 70005), (465, 60671), (507, 55645), (845, 33387), (1077, 26195), (1209, 23335), (1795, 15717), (2015, 14001), (2535, 11129), (4667, 6045), (5239, 5385)]