51507440

素因数分解:

$2^4\times 5^1\times {\mathrm{659}}^1\times {\mathrm{977}}^1$

素因数の和:1649

約数の個数: 40

約数和(自身を含む): 120059280

約数和(自身を除く): 68551840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 659, 977, 1318, 1954, 2636, 3295, 3908, 4885, 5272, 6590, 7816, 9770, 10544, 13180, 15632, 19540, 26360, 39080, 52720, 78160, 643843, 1287686, 2575372, 3219215, 5150744, 6438430, 10301488, 12876860, 25753720, 51507440]

約数ペア:

[(1, 51507440), (2, 25753720), (4, 12876860), (5, 10301488), (8, 6438430), (10, 5150744), (16, 3219215), (20, 2575372), (40, 1287686), (80, 643843), (659, 78160), (977, 52720), (1318, 39080), (1954, 26360), (2636, 19540), (3295, 15632), (3908, 13180), (4885, 10544), (5272, 9770), (6590, 7816)]