388108040

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{122819}}^1$

素因数の和:122909

約数の個数: 32

約数和(自身を含む): 884304000

約数和(自身を除く): 496195960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 122819, 245638, 491276, 614095, 982552, 1228190, 2456380, 4912760, 9702701, 19405402, 38810804, 48513505, 77621608, 97027010, 194054020, 388108040]

約数ペア:

[(1, 388108040), (2, 194054020), (4, 97027010), (5, 77621608), (8, 48513505), (10, 38810804), (20, 19405402), (40, 9702701), (79, 4912760), (158, 2456380), (316, 1228190), (395, 982552), (632, 614095), (790, 491276), (1580, 245638), (3160, 122819)]