20188791664

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{431}}^1\times {\mathrm{94439}}^1$

素因数の和:94909

約数の個数: 40

約数和(自身を含む): 40471695360

約数和(自身を除く): 20282903696

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 431, 496, 862, 1724, 3448, 6896, 13361, 26722, 53444, 94439, 106888, 188878, 213776, 377756, 755512, 1511024, 2927609, 5855218, 11710436, 23420872, 40703209, 46841744, 81406418, 162812836, 325625672, 651251344, 1261799479, 2523598958, 5047197916, 10094395832, 20188791664]

約数ペア:

[(1, 20188791664), (2, 10094395832), (4, 5047197916), (8, 2523598958), (16, 1261799479), (31, 651251344), (62, 325625672), (124, 162812836), (248, 81406418), (431, 46841744), (496, 40703209), (862, 23420872), (1724, 11710436), (3448, 5855218), (6896, 2927609), (13361, 1511024), (26722, 755512), (53444, 377756), (94439, 213776), (106888, 188878)]