378926120

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{457}}^1\times {\mathrm{1091}}^1$

素因数の和:1578

約数の個数: 64

約数和(自身を含む): 900244800

約数和(自身を除く): 521318680

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 457, 760, 914, 1091, 1828, 2182, 2285, 3656, 4364, 4570, 5455, 8683, 8728, 9140, 10910, 17366, 18280, 20729, 21820, 34732, 41458, 43415, 43640, 69464, 82916, 86830, 103645, 165832, 173660, 207290, 347320, 414580, 498587, 829160, 997174, 1994348, 2492935, 3988696, 4985870, 9473153, 9971740, 18946306, 19943480, 37892612, 47365765, 75785224, 94731530, 189463060, 378926120]

約数ペア:

[(1, 378926120), (2, 189463060), (4, 94731530), (5, 75785224), (8, 47365765), (10, 37892612), (19, 19943480), (20, 18946306), (38, 9971740), (40, 9473153), (76, 4985870), (95, 3988696), (152, 2492935), (190, 1994348), (380, 997174), (457, 829160), (760, 498587), (914, 414580), (1091, 347320), (1828, 207290), (2182, 173660), (2285, 165832), (3656, 103645), (4364, 86830), (4570, 82916), (5455, 69464), (8683, 43640), (8728, 43415), (9140, 41458), (10910, 34732), (17366, 21820), (18280, 20729)]