80521945

素因数分解:

$5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{19333}}^1$

素因数の和:19369

約数の個数: 24

約数和(自身を含む): 119020104

約数和(自身を除く): 38498159

約数列:

[1, 5, 7, 17, 35, 49, 85, 119, 245, 595, 833, 4165, 19333, 96665, 135331, 328661, 676655, 947317, 1643305, 2300627, 4736585, 11503135, 16104389, 80521945]

約数ペア:

[(1, 80521945), (5, 16104389), (7, 11503135), (17, 4736585), (35, 2300627), (49, 1643305), (85, 947317), (119, 676655), (245, 328661), (595, 135331), (833, 96665), (4165, 19333)]