51386715

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{379}}^1$

素因数の和:544

約数の個数: 48

約数和(自身を含む): 93899520

約数和(自身を除く): 42512805

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 115, 131, 207, 345, 379, 393, 655, 1035, 1137, 1179, 1895, 1965, 3013, 3411, 5685, 5895, 8717, 9039, 15065, 17055, 26151, 27117, 43585, 45195, 49649, 78453, 130755, 135585, 148947, 248245, 392265, 446841, 744735, 1141927, 2234205, 3425781, 5709635, 10277343, 17128905, 51386715]

約数ペア:

[(1, 51386715), (3, 17128905), (5, 10277343), (9, 5709635), (15, 3425781), (23, 2234205), (45, 1141927), (69, 744735), (115, 446841), (131, 392265), (207, 248245), (345, 148947), (379, 135585), (393, 130755), (655, 78453), (1035, 49649), (1137, 45195), (1179, 43585), (1895, 27117), (1965, 26151), (3013, 17055), (3411, 15065), (5685, 9039), (5895, 8717)]