263614390

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{65413}}^1$

素因数の和:65464

約数の個数: 32

約数和(自身を含む): 527498496

約数和(自身を除く): 263884106

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 65413, 130826, 327065, 654130, 850369, 1700738, 2027803, 4055606, 4251845, 8503690, 10139015, 20278030, 26361439, 52722878, 131807195, 263614390]

約数ペア:

[(1, 263614390), (2, 131807195), (5, 52722878), (10, 26361439), (13, 20278030), (26, 10139015), (31, 8503690), (62, 4251845), (65, 4055606), (130, 2027803), (155, 1700738), (310, 850369), (403, 654130), (806, 327065), (2015, 130826), (4030, 65413)]