25281025

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{571}}^1$

素因数の和:622

約数の個数: 48

約数和(自身を含む): 40854528

約数和(自身を除く): 15573503

約数列:

[1, 5, 7, 11, 23, 25, 35, 55, 77, 115, 161, 175, 253, 275, 385, 571, 575, 805, 1265, 1771, 1925, 2855, 3997, 4025, 6281, 6325, 8855, 13133, 14275, 19985, 31405, 43967, 44275, 65665, 91931, 99925, 144463, 157025, 219835, 328325, 459655, 722315, 1011241, 1099175, 2298275, 3611575, 5056205, 25281025]

約数ペア:

[(1, 25281025), (5, 5056205), (7, 3611575), (11, 2298275), (23, 1099175), (25, 1011241), (35, 722315), (55, 459655), (77, 328325), (115, 219835), (161, 157025), (175, 144463), (253, 99925), (275, 91931), (385, 65665), (571, 44275), (575, 43967), (805, 31405), (1265, 19985), (1771, 14275), (1925, 13133), (2855, 8855), (3997, 6325), (4025, 6281)]