51138100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{283}}^1$

素因数の和:449

約数の個数: 72

約数和(自身を含む): 120790880

約数和(自身を除く): 69652780

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 139, 260, 278, 283, 325, 556, 566, 650, 695, 1132, 1300, 1390, 1415, 1807, 2780, 2830, 3475, 3614, 3679, 5660, 6950, 7075, 7228, 7358, 9035, 13900, 14150, 14716, 18070, 18395, 28300, 36140, 36790, 39337, 45175, 73580, 78674, 90350, 91975, 157348, 180700, 183950, 196685, 367900, 393370, 511381, 786740, 983425, 1022762, 1966850, 2045524, 2556905, 3933700, 5113810, 10227620, 12784525, 25569050, 51138100]

約数ペア:

[(1, 51138100), (2, 25569050), (4, 12784525), (5, 10227620), (10, 5113810), (13, 3933700), (20, 2556905), (25, 2045524), (26, 1966850), (50, 1022762), (52, 983425), (65, 786740), (100, 511381), (130, 393370), (139, 367900), (260, 196685), (278, 183950), (283, 180700), (325, 157348), (556, 91975), (566, 90350), (650, 78674), (695, 73580), (1132, 45175), (1300, 39337), (1390, 36790), (1415, 36140), (1807, 28300), (2780, 18395), (2830, 18070), (3475, 14716), (3614, 14150), (3679, 13900), (5660, 9035), (6950, 7358), (7075, 7228)]