640777098

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{3413}}^1$

素因数の和:3543

約数の個数: 64

約数和(自身を含む): 1445351040

約数和(自身を除く): 804573942

約数列:

[1, 2, 3, 6, 13, 26, 29, 39, 58, 78, 83, 87, 166, 174, 249, 377, 498, 754, 1079, 1131, 2158, 2262, 2407, 3237, 3413, 4814, 6474, 6826, 7221, 10239, 14442, 20478, 31291, 44369, 62582, 88738, 93873, 98977, 133107, 187746, 197954, 266214, 283279, 296931, 566558, 593862, 849837, 1286701, 1699674, 2573402, 3682627, 3860103, 7365254, 7720206, 8215091, 11047881, 16430182, 22095762, 24645273, 49290546, 106796183, 213592366, 320388549, 640777098]

約数ペア:

[(1, 640777098), (2, 320388549), (3, 213592366), (6, 106796183), (13, 49290546), (26, 24645273), (29, 22095762), (39, 16430182), (58, 11047881), (78, 8215091), (83, 7720206), (87, 7365254), (166, 3860103), (174, 3682627), (249, 2573402), (377, 1699674), (498, 1286701), (754, 849837), (1079, 593862), (1131, 566558), (2158, 296931), (2262, 283279), (2407, 266214), (3237, 197954), (3413, 187746), (4814, 133107), (6474, 98977), (6826, 93873), (7221, 88738), (10239, 62582), (14442, 44369), (20478, 31291)]