61481320

素因数分解:

$2^3\times 5^1\times {\mathrm{401}}^1\times {\mathrm{3833}}^1$

素因数の和:4245

約数の個数: 32

約数和(自身を含む): 138714120

約数和(自身を除く): 77232800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 401, 802, 1604, 2005, 3208, 3833, 4010, 7666, 8020, 15332, 16040, 19165, 30664, 38330, 76660, 153320, 1537033, 3074066, 6148132, 7685165, 12296264, 15370330, 30740660, 61481320]

約数ペア:

[(1, 61481320), (2, 30740660), (4, 15370330), (5, 12296264), (8, 7685165), (10, 6148132), (20, 3074066), (40, 1537033), (401, 153320), (802, 76660), (1604, 38330), (2005, 30664), (3208, 19165), (3833, 16040), (4010, 15332), (7666, 8020)]