28098915

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{1399}}^1$

素因数の和:1523

約数の個数: 32

約数和(自身を含む): 48921600

約数和(自身を除く): 20822685

約数列:

[1, 3, 5, 13, 15, 39, 65, 103, 195, 309, 515, 1339, 1399, 1545, 4017, 4197, 6695, 6995, 18187, 20085, 20985, 54561, 90935, 144097, 272805, 432291, 720485, 1873261, 2161455, 5619783, 9366305, 28098915]

約数ペア:

[(1, 28098915), (3, 9366305), (5, 5619783), (13, 2161455), (15, 1873261), (39, 720485), (65, 432291), (103, 272805), (195, 144097), (309, 90935), (515, 54561), (1339, 20985), (1399, 20085), (1545, 18187), (4017, 6995), (4197, 6695)]