80047990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{17749}}^1$

素因数の和:17808

約数の個数: 32

約数和(自身を含む): 161028000

約数和(自身を除く): 80980010

約数列:

[1, 2, 5, 10, 11, 22, 41, 55, 82, 110, 205, 410, 451, 902, 2255, 4510, 17749, 35498, 88745, 177490, 195239, 390478, 727709, 976195, 1455418, 1952390, 3638545, 7277090, 8004799, 16009598, 40023995, 80047990]

約数ペア:

[(1, 80047990), (2, 40023995), (5, 16009598), (10, 8004799), (11, 7277090), (22, 3638545), (41, 1952390), (55, 1455418), (82, 976195), (110, 727709), (205, 390478), (410, 195239), (451, 177490), (902, 88745), (2255, 35498), (4510, 17749)]