2020121025

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{1399}}^1\times {\mathrm{1481}}^1$

素因数の和:2906

約数の個数: 48

約数和(自身を含む): 3601852800

約数和(自身を除く): 1581731775

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 195, 325, 975, 1399, 1481, 4197, 4443, 6995, 7405, 18187, 19253, 20985, 22215, 34975, 37025, 54561, 57759, 90935, 96265, 104925, 111075, 272805, 288795, 454675, 481325, 1364025, 1443975, 2071919, 6215757, 10359595, 26934947, 31078785, 51797975, 80804841, 134674735, 155393925, 404024205, 673373675, 2020121025]

約数ペア:

[(1, 2020121025), (3, 673373675), (5, 404024205), (13, 155393925), (15, 134674735), (25, 80804841), (39, 51797975), (65, 31078785), (75, 26934947), (195, 10359595), (325, 6215757), (975, 2071919), (1399, 1443975), (1481, 1364025), (4197, 481325), (4443, 454675), (6995, 288795), (7405, 272805), (18187, 111075), (19253, 104925), (20985, 96265), (22215, 90935), (34975, 57759), (37025, 54561)]