18859225

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{101}}^1$

素因数の和:226

約数の個数: 48

約数和(自身を含む): 29748096

約数和(自身を除く): 10888871

約数列:

[1, 5, 7, 11, 25, 35, 55, 77, 97, 101, 175, 275, 385, 485, 505, 679, 707, 1067, 1111, 1925, 2425, 2525, 3395, 3535, 5335, 5555, 7469, 7777, 9797, 16975, 17675, 26675, 27775, 37345, 38885, 48985, 68579, 107767, 186725, 194425, 244925, 342895, 538835, 754369, 1714475, 2694175, 3771845, 18859225]

約数ペア:

[(1, 18859225), (5, 3771845), (7, 2694175), (11, 1714475), (25, 754369), (35, 538835), (55, 342895), (77, 244925), (97, 194425), (101, 186725), (175, 107767), (275, 68579), (385, 48985), (485, 38885), (505, 37345), (679, 27775), (707, 26675), (1067, 17675), (1111, 16975), (1925, 9797), (2425, 7777), (2525, 7469), (3395, 5555), (3535, 5335)]