65665520

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43201}}^1$

素因数の和:43233

約数の個数: 40

約数和(自身を含む): 160711440

約数和(自身を除く): 95045920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 43201, 86402, 172804, 216005, 345608, 432010, 691216, 820819, 864020, 1641638, 1728040, 3283276, 3456080, 4104095, 6566552, 8208190, 13133104, 16416380, 32832760, 65665520]

約数ペア:

[(1, 65665520), (2, 32832760), (4, 16416380), (5, 13133104), (8, 8208190), (10, 6566552), (16, 4104095), (19, 3456080), (20, 3283276), (38, 1728040), (40, 1641638), (76, 864020), (80, 820819), (95, 691216), (152, 432010), (190, 345608), (304, 216005), (380, 172804), (760, 86402), (1520, 43201)]