16288520

素因数分解:

$2^3\times 5^1\times {\mathrm{313}}^1\times {\mathrm{1301}}^1$

素因数の和:1625

約数の個数: 32

約数和(自身を含む): 36794520

約数和(自身を除く): 20506000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 313, 626, 1252, 1301, 1565, 2504, 2602, 3130, 5204, 6260, 6505, 10408, 12520, 13010, 26020, 52040, 407213, 814426, 1628852, 2036065, 3257704, 4072130, 8144260, 16288520]

約数ペア:

[(1, 16288520), (2, 8144260), (4, 4072130), (5, 3257704), (8, 2036065), (10, 1628852), (20, 814426), (40, 407213), (313, 52040), (626, 26020), (1252, 13010), (1301, 12520), (1565, 10408), (2504, 6505), (2602, 6260), (3130, 5204)]