20995450

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{223}}^1\times {\mathrm{269}}^1$

素因数の和:511

約数の個数: 48

約数和(自身を含む): 44997120

約数和(自身を除く): 24001670

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 175, 223, 269, 350, 446, 538, 1115, 1345, 1561, 1883, 2230, 2690, 3122, 3766, 5575, 6725, 7805, 9415, 11150, 13450, 15610, 18830, 39025, 47075, 59987, 78050, 94150, 119974, 299935, 419909, 599870, 839818, 1499675, 2099545, 2999350, 4199090, 10497725, 20995450]

約数ペア:

[(1, 20995450), (2, 10497725), (5, 4199090), (7, 2999350), (10, 2099545), (14, 1499675), (25, 839818), (35, 599870), (50, 419909), (70, 299935), (175, 119974), (223, 94150), (269, 78050), (350, 59987), (446, 47075), (538, 39025), (1115, 18830), (1345, 15610), (1561, 13450), (1883, 11150), (2230, 9415), (2690, 7805), (3122, 6725), (3766, 5575)]