51363715

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:148

約数の個数: 64

約数和(自身を含む): 76640256

約数和(自身を除く): 25276541

約数列:

[1, 5, 13, 17, 23, 43, 47, 65, 85, 115, 215, 221, 235, 299, 391, 559, 611, 731, 799, 989, 1081, 1105, 1495, 1955, 2021, 2795, 3055, 3655, 3995, 4945, 5083, 5405, 9503, 10105, 10387, 12857, 14053, 16813, 18377, 25415, 26273, 34357, 46483, 47515, 51935, 64285, 70265, 84065, 91885, 131365, 171785, 218569, 232415, 238901, 446641, 604279, 790211, 1092845, 1194505, 2233205, 3021395, 3951055, 10272743, 51363715]

約数ペア:

[(1, 51363715), (5, 10272743), (13, 3951055), (17, 3021395), (23, 2233205), (43, 1194505), (47, 1092845), (65, 790211), (85, 604279), (115, 446641), (215, 238901), (221, 232415), (235, 218569), (299, 171785), (391, 131365), (559, 91885), (611, 84065), (731, 70265), (799, 64285), (989, 51935), (1081, 47515), (1105, 46483), (1495, 34357), (1955, 26273), (2021, 25415), (2795, 18377), (3055, 16813), (3655, 14053), (3995, 12857), (4945, 10387), (5083, 10105), (5405, 9503)]