489993920

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{117787}}^1$

素因数の和:117817

約数の個数: 56

約数和(自身を含む): 1256562384

約数和(自身を除く): 766568464

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 208, 260, 320, 416, 520, 832, 1040, 2080, 4160, 117787, 235574, 471148, 588935, 942296, 1177870, 1531231, 1884592, 2355740, 3062462, 3769184, 4711480, 6124924, 7538368, 7656155, 9422960, 12249848, 15312310, 18845920, 24499696, 30624620, 37691840, 48999392, 61249240, 97998784, 122498480, 244996960, 489993920]

約数ペア:

[(1, 489993920), (2, 244996960), (4, 122498480), (5, 97998784), (8, 61249240), (10, 48999392), (13, 37691840), (16, 30624620), (20, 24499696), (26, 18845920), (32, 15312310), (40, 12249848), (52, 9422960), (64, 7656155), (65, 7538368), (80, 6124924), (104, 4711480), (130, 3769184), (160, 3062462), (208, 2355740), (260, 1884592), (320, 1531231), (416, 1177870), (520, 942296), (832, 588935), (1040, 471148), (2080, 235574), (4160, 117787)]