40148120

素因数分解:

$2^3\times 5^1\times {\mathrm{401}}^1\times {\mathrm{2503}}^1$

素因数の和:2915

約数の個数: 32

約数和(自身を含む): 90594720

約数和(自身を除く): 50446600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 401, 802, 1604, 2005, 2503, 3208, 4010, 5006, 8020, 10012, 12515, 16040, 20024, 25030, 50060, 100120, 1003703, 2007406, 4014812, 5018515, 8029624, 10037030, 20074060, 40148120]

約数ペア:

[(1, 40148120), (2, 20074060), (4, 10037030), (5, 8029624), (8, 5018515), (10, 4014812), (20, 2007406), (40, 1003703), (401, 100120), (802, 50060), (1604, 25030), (2005, 20024), (2503, 16040), (3208, 12515), (4010, 10012), (5006, 8020)]