28210325

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{607}}^1$

素因数の和:654

約数の個数: 36

約数和(自身を含む): 41390208

約数和(自身を除く): 13179883

約数列:

[1, 5, 11, 13, 25, 55, 65, 143, 169, 275, 325, 607, 715, 845, 1859, 3035, 3575, 4225, 6677, 7891, 9295, 15175, 33385, 39455, 46475, 86801, 102583, 166925, 197275, 434005, 512915, 1128413, 2170025, 2564575, 5642065, 28210325]

約数ペア:

[(1, 28210325), (5, 5642065), (11, 2564575), (13, 2170025), (25, 1128413), (55, 512915), (65, 434005), (143, 197275), (169, 166925), (275, 102583), (325, 86801), (607, 46475), (715, 39455), (845, 33385), (1859, 15175), (3035, 9295), (3575, 7891), (4225, 6677)]