19353280

素因数分解:

$2^6\times 5^1\times {\mathrm{197}}^1\times {\mathrm{307}}^1$

素因数の和:521

約数の個数: 56

約数和(自身を含む): 46469808

約数和(自身を除く): 27116528

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 197, 307, 320, 394, 614, 788, 985, 1228, 1535, 1576, 1970, 2456, 3070, 3152, 3940, 4912, 6140, 6304, 7880, 9824, 12280, 12608, 15760, 19648, 24560, 31520, 49120, 60479, 63040, 98240, 120958, 241916, 302395, 483832, 604790, 967664, 1209580, 1935328, 2419160, 3870656, 4838320, 9676640, 19353280]

約数ペア:

[(1, 19353280), (2, 9676640), (4, 4838320), (5, 3870656), (8, 2419160), (10, 1935328), (16, 1209580), (20, 967664), (32, 604790), (40, 483832), (64, 302395), (80, 241916), (160, 120958), (197, 98240), (307, 63040), (320, 60479), (394, 49120), (614, 31520), (788, 24560), (985, 19648), (1228, 15760), (1535, 12608), (1576, 12280), (1970, 9824), (2456, 7880), (3070, 6304), (3152, 6140), (3940, 4912)]