19238772020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{1042187}}^1$

素因数の和:1042280

約数の個数: 48

約数和(自身を含む): 44122071168

約数和(自身を除く): 24883299148

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 71, 130, 142, 260, 284, 355, 710, 923, 1420, 1846, 3692, 4615, 9230, 18460, 1042187, 2084374, 4168748, 5210935, 10421870, 13548431, 20843740, 27096862, 54193724, 67742155, 73995277, 135484310, 147990554, 270968620, 295981108, 369976385, 739952770, 961938601, 1479905540, 1923877202, 3847754404, 4809693005, 9619386010, 19238772020]

約数ペア:

[(1, 19238772020), (2, 9619386010), (4, 4809693005), (5, 3847754404), (10, 1923877202), (13, 1479905540), (20, 961938601), (26, 739952770), (52, 369976385), (65, 295981108), (71, 270968620), (130, 147990554), (142, 135484310), (260, 73995277), (284, 67742155), (355, 54193724), (710, 27096862), (923, 20843740), (1420, 13548431), (1846, 10421870), (3692, 5210935), (4615, 4168748), (9230, 2084374), (18460, 1042187)]