78756340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{302909}}^1$

素因数の和:302931

約数の個数: 24

約数和(自身を含む): 178111080

約数和(自身を除く): 99354740

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 302909, 605818, 1211636, 1514545, 3029090, 3937817, 6058180, 7875634, 15751268, 19689085, 39378170, 78756340]

約数ペア:

[(1, 78756340), (2, 39378170), (4, 19689085), (5, 15751268), (10, 7875634), (13, 6058180), (20, 3937817), (26, 3029090), (52, 1514545), (65, 1211636), (130, 605818), (260, 302909)]