20475480

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{10037}}^1$

素因数の和:10068

約数の個数: 64

約数和(自身を含む): 65046240

約数和(自身を除く): 44570760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 102, 120, 136, 170, 204, 255, 340, 408, 510, 680, 1020, 2040, 10037, 20074, 30111, 40148, 50185, 60222, 80296, 100370, 120444, 150555, 170629, 200740, 240888, 301110, 341258, 401480, 511887, 602220, 682516, 853145, 1023774, 1204440, 1365032, 1706290, 2047548, 2559435, 3412580, 4095096, 5118870, 6825160, 10237740, 20475480]

約数ペア:

[(1, 20475480), (2, 10237740), (3, 6825160), (4, 5118870), (5, 4095096), (6, 3412580), (8, 2559435), (10, 2047548), (12, 1706290), (15, 1365032), (17, 1204440), (20, 1023774), (24, 853145), (30, 682516), (34, 602220), (40, 511887), (51, 401480), (60, 341258), (68, 301110), (85, 240888), (102, 200740), (120, 170629), (136, 150555), (170, 120444), (204, 100370), (255, 80296), (340, 60222), (408, 50185), (510, 40148), (680, 30111), (1020, 20074), (2040, 10037)]