38909780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{21379}}^1$

素因数の和:21408

約数の個数: 48

約数和(自身を含む): 100571520

約数和(自身を除く): 61661740

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 21379, 42758, 85516, 106895, 149653, 213790, 277927, 299306, 427580, 555854, 598612, 748265, 1111708, 1389635, 1496530, 1945489, 2779270, 2993060, 3890978, 5558540, 7781956, 9727445, 19454890, 38909780]

約数ペア:

[(1, 38909780), (2, 19454890), (4, 9727445), (5, 7781956), (7, 5558540), (10, 3890978), (13, 2993060), (14, 2779270), (20, 1945489), (26, 1496530), (28, 1389635), (35, 1111708), (52, 748265), (65, 598612), (70, 555854), (91, 427580), (130, 299306), (140, 277927), (182, 213790), (260, 149653), (364, 106895), (455, 85516), (910, 42758), (1820, 21379)]