1220265

素因数分解:

$3^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1$

素因数の和:171

約数の個数: 40

約数和(自身を含む): 2299968

約数和(自身を除く): 1079703

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 69, 81, 115, 131, 135, 207, 345, 393, 405, 621, 655, 1035, 1179, 1863, 1965, 3013, 3105, 3537, 5895, 9039, 9315, 10611, 15065, 17685, 27117, 45195, 53055, 81351, 135585, 244053, 406755, 1220265]

約数ペア:

[(1, 1220265), (3, 406755), (5, 244053), (9, 135585), (15, 81351), (23, 53055), (27, 45195), (45, 27117), (69, 17685), (81, 15065), (115, 10611), (131, 9315), (135, 9039), (207, 5895), (345, 3537), (393, 3105), (405, 3013), (621, 1965), (655, 1863), (1035, 1179)]