1331320

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{401}}^1$

素因数の和:495

約数の個数: 32

約数和(自身を含む): 3039120

約数和(自身を除く): 1707800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 166, 332, 401, 415, 664, 802, 830, 1604, 1660, 2005, 3208, 3320, 4010, 8020, 16040, 33283, 66566, 133132, 166415, 266264, 332830, 665660, 1331320]

約数ペア:

[(1, 1331320), (2, 665660), (4, 332830), (5, 266264), (8, 166415), (10, 133132), (20, 66566), (40, 33283), (83, 16040), (166, 8020), (332, 4010), (401, 3320), (415, 3208), (664, 2005), (802, 1660), (830, 1604)]