80327780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{521}}^1\times {\mathrm{593}}^1$

素因数の和:1136

約数の個数: 48

約数和(自身を含む): 182319984

約数和(自身を除く): 101992204

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 521, 593, 1042, 1186, 2084, 2372, 2605, 2965, 5210, 5930, 6773, 7709, 10420, 11860, 13546, 15418, 27092, 30836, 33865, 38545, 67730, 77090, 135460, 154180, 308953, 617906, 1235812, 1544765, 3089530, 4016389, 6179060, 8032778, 16065556, 20081945, 40163890, 80327780]

約数ペア:

[(1, 80327780), (2, 40163890), (4, 20081945), (5, 16065556), (10, 8032778), (13, 6179060), (20, 4016389), (26, 3089530), (52, 1544765), (65, 1235812), (130, 617906), (260, 308953), (521, 154180), (593, 135460), (1042, 77090), (1186, 67730), (2084, 38545), (2372, 33865), (2605, 30836), (2965, 27092), (5210, 15418), (5930, 13546), (6773, 11860), (7709, 10420)]