72139845

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{211}}^1\times {\mathrm{991}}^1$

素因数の和:1233

約数の個数: 32

約数和(自身を含む): 121135104

約数和(自身を除く): 48995259

約数列:

[1, 3, 5, 15, 23, 69, 115, 211, 345, 633, 991, 1055, 2973, 3165, 4853, 4955, 14559, 14865, 22793, 24265, 68379, 72795, 113965, 209101, 341895, 627303, 1045505, 3136515, 4809323, 14427969, 24046615, 72139845]

約数ペア:

[(1, 72139845), (3, 24046615), (5, 14427969), (15, 4809323), (23, 3136515), (69, 1045505), (115, 627303), (211, 341895), (345, 209101), (633, 113965), (991, 72795), (1055, 68379), (2973, 24265), (3165, 22793), (4853, 14865), (4955, 14559)]