31216905

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{1259}}^1$

素因数の和:1318

約数の個数: 48

約数和(自身を含む): 58968000

約数和(自身を除く): 27751095

約数列:

[1, 3, 5, 9, 15, 19, 29, 45, 57, 87, 95, 145, 171, 261, 285, 435, 551, 855, 1259, 1305, 1653, 2755, 3777, 4959, 6295, 8265, 11331, 18885, 23921, 24795, 36511, 56655, 71763, 109533, 119605, 182555, 215289, 328599, 358815, 547665, 693709, 1076445, 1642995, 2081127, 3468545, 6243381, 10405635, 31216905]

約数ペア:

[(1, 31216905), (3, 10405635), (5, 6243381), (9, 3468545), (15, 2081127), (19, 1642995), (29, 1076445), (45, 693709), (57, 547665), (87, 358815), (95, 328599), (145, 215289), (171, 182555), (261, 119605), (285, 109533), (435, 71763), (551, 56655), (855, 36511), (1259, 24795), (1305, 23921), (1653, 18885), (2755, 11331), (3777, 8265), (4959, 6295)]