90100280

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{1151}}^1$

素因数の和:1284

約数の個数: 64

約数和(自身を含む): 215654400

約数和(自身を除く): 125554120

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 103, 152, 190, 206, 380, 412, 515, 760, 824, 1030, 1151, 1957, 2060, 2302, 3914, 4120, 4604, 5755, 7828, 9208, 9785, 11510, 15656, 19570, 21869, 23020, 39140, 43738, 46040, 78280, 87476, 109345, 118553, 174952, 218690, 237106, 437380, 474212, 592765, 874760, 948424, 1185530, 2252507, 2371060, 4505014, 4742120, 9010028, 11262535, 18020056, 22525070, 45050140, 90100280]

約数ペア:

[(1, 90100280), (2, 45050140), (4, 22525070), (5, 18020056), (8, 11262535), (10, 9010028), (19, 4742120), (20, 4505014), (38, 2371060), (40, 2252507), (76, 1185530), (95, 948424), (103, 874760), (152, 592765), (190, 474212), (206, 437380), (380, 237106), (412, 218690), (515, 174952), (760, 118553), (824, 109345), (1030, 87476), (1151, 78280), (1957, 46040), (2060, 43738), (2302, 39140), (3914, 23020), (4120, 21869), (4604, 19570), (5755, 15656), (7828, 11510), (9208, 9785)]