1991770

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{953}}^1$

素因数の和:990

約数の個数: 32

約数和(自身を含む): 4121280

約数和(自身を除く): 2129510

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 95, 110, 190, 209, 418, 953, 1045, 1906, 2090, 4765, 9530, 10483, 18107, 20966, 36214, 52415, 90535, 104830, 181070, 199177, 398354, 995885, 1991770]

約数ペア:

[(1, 1991770), (2, 995885), (5, 398354), (10, 199177), (11, 181070), (19, 104830), (22, 90535), (38, 52415), (55, 36214), (95, 20966), (110, 18107), (190, 10483), (209, 9530), (418, 4765), (953, 2090), (1045, 1906)]