256399822

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{601}}^1\times {\mathrm{983}}^1$

素因数の和:1624

約数の個数: 32

約数和(自身を含む): 454938624

約数和(自身を除く): 198538802

約数列:

[1, 2, 7, 14, 31, 62, 217, 434, 601, 983, 1202, 1966, 4207, 6881, 8414, 13762, 18631, 30473, 37262, 60946, 130417, 213311, 260834, 426622, 590783, 1181566, 4135481, 8270962, 18314273, 36628546, 128199911, 256399822]

約数ペア:

[(1, 256399822), (2, 128199911), (7, 36628546), (14, 18314273), (31, 8270962), (62, 4135481), (217, 1181566), (434, 590783), (601, 426622), (983, 260834), (1202, 213311), (1966, 130417), (4207, 60946), (6881, 37262), (8414, 30473), (13762, 18631)]