647994382

素因数分解:

$2^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{137}}^1\times {\mathrm{2579}}^1$

素因数の和:2856

約数の個数: 32

約数和(自身を含む): 1127934720

約数和(自身を除く): 479940338

約数列:

[1, 2, 7, 14, 131, 137, 262, 274, 917, 959, 1834, 1918, 2579, 5158, 17947, 18053, 35894, 36106, 125629, 251258, 337849, 353323, 675698, 706646, 2364943, 2473261, 4729886, 4946522, 46285313, 92570626, 323997191, 647994382]

約数ペア:

[(1, 647994382), (2, 323997191), (7, 92570626), (14, 46285313), (131, 4946522), (137, 4729886), (262, 2473261), (274, 2364943), (917, 706646), (959, 675698), (1834, 353323), (1918, 337849), (2579, 251258), (5158, 125629), (17947, 36106), (18053, 35894)]