408367040

素因数分解:

$2^6\times 5^1\times {\mathrm{1276147}}^1$

素因数の和:1276164

約数の個数: 28

約数和(自身を含む): 972424776

約数和(自身を除く): 564057736

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 1276147, 2552294, 5104588, 6380735, 10209176, 12761470, 20418352, 25522940, 40836704, 51045880, 81673408, 102091760, 204183520, 408367040]

約数ペア:

[(1, 408367040), (2, 204183520), (4, 102091760), (5, 81673408), (8, 51045880), (10, 40836704), (16, 25522940), (20, 20418352), (32, 12761470), (40, 10209176), (64, 6380735), (80, 5104588), (160, 2552294), (320, 1276147)]