1981020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{137}}^1\times {\mathrm{241}}^1$

素因数の和:390

約数の個数: 48

約数和(自身を含む): 5610528

約数和(自身を除く): 3629508

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 137, 241, 274, 411, 482, 548, 685, 723, 822, 964, 1205, 1370, 1446, 1644, 2055, 2410, 2740, 2892, 3615, 4110, 4820, 7230, 8220, 14460, 33017, 66034, 99051, 132068, 165085, 198102, 330170, 396204, 495255, 660340, 990510, 1981020]

約数ペア:

[(1, 1981020), (2, 990510), (3, 660340), (4, 495255), (5, 396204), (6, 330170), (10, 198102), (12, 165085), (15, 132068), (20, 99051), (30, 66034), (60, 33017), (137, 14460), (241, 8220), (274, 7230), (411, 4820), (482, 4110), (548, 3615), (685, 2892), (723, 2740), (822, 2410), (964, 2055), (1205, 1644), (1370, 1446)]