20595575

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{823}}^1$

素因数の和:864

約数の個数: 48

約数和(自身を含む): 34331136

約数和(自身を除く): 13735561

約数列:

[1, 5, 7, 11, 13, 25, 35, 55, 65, 77, 91, 143, 175, 275, 325, 385, 455, 715, 823, 1001, 1925, 2275, 3575, 4115, 5005, 5761, 9053, 10699, 20575, 25025, 28805, 45265, 53495, 63371, 74893, 117689, 144025, 226325, 267475, 316855, 374465, 588445, 823823, 1584275, 1872325, 2942225, 4119115, 20595575]

約数ペア:

[(1, 20595575), (5, 4119115), (7, 2942225), (11, 1872325), (13, 1584275), (25, 823823), (35, 588445), (55, 374465), (65, 316855), (77, 267475), (91, 226325), (143, 144025), (175, 117689), (275, 74893), (325, 63371), (385, 53495), (455, 45265), (715, 28805), (823, 25025), (1001, 20575), (1925, 10699), (2275, 9053), (3575, 5761), (4115, 5005)]