1275428

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1$

素因数の和:164

約数の個数: 48

約数和(自身を含む): 2878848

約数和(自身を除く): 1603420

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 41, 44, 77, 82, 101, 154, 164, 202, 287, 308, 404, 451, 574, 707, 902, 1111, 1148, 1414, 1804, 2222, 2828, 3157, 4141, 4444, 6314, 7777, 8282, 12628, 15554, 16564, 28987, 31108, 45551, 57974, 91102, 115948, 182204, 318857, 637714, 1275428]

約数ペア:

[(1, 1275428), (2, 637714), (4, 318857), (7, 182204), (11, 115948), (14, 91102), (22, 57974), (28, 45551), (41, 31108), (44, 28987), (77, 16564), (82, 15554), (101, 12628), (154, 8282), (164, 7777), (202, 6314), (287, 4444), (308, 4141), (404, 3157), (451, 2828), (574, 2222), (707, 1804), (902, 1414), (1111, 1148)]