16513180

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{401}}^1$

素因数の和:510

約数の個数: 48

約数和(自身を含む): 36469440

約数和(自身を除く): 19956260

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 71, 116, 142, 145, 284, 290, 355, 401, 580, 710, 802, 1420, 1604, 2005, 2059, 4010, 4118, 8020, 8236, 10295, 11629, 20590, 23258, 28471, 41180, 46516, 56942, 58145, 113884, 116290, 142355, 232580, 284710, 569420, 825659, 1651318, 3302636, 4128295, 8256590, 16513180]

約数ペア:

[(1, 16513180), (2, 8256590), (4, 4128295), (5, 3302636), (10, 1651318), (20, 825659), (29, 569420), (58, 284710), (71, 232580), (116, 142355), (142, 116290), (145, 113884), (284, 58145), (290, 56942), (355, 46516), (401, 41180), (580, 28471), (710, 23258), (802, 20590), (1420, 11629), (1604, 10295), (2005, 8236), (2059, 8020), (4010, 4118)]