82787560

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{1123}}^1$

素因数の和:1250

約数の個数: 64

約数和(自身を含む): 198273600

約数和(自身を除く): 115486040

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 97, 152, 190, 194, 380, 388, 485, 760, 776, 970, 1123, 1843, 1940, 2246, 3686, 3880, 4492, 5615, 7372, 8984, 9215, 11230, 14744, 18430, 21337, 22460, 36860, 42674, 44920, 73720, 85348, 106685, 108931, 170696, 213370, 217862, 426740, 435724, 544655, 853480, 871448, 1089310, 2069689, 2178620, 4139378, 4357240, 8278756, 10348445, 16557512, 20696890, 41393780, 82787560]

約数ペア:

[(1, 82787560), (2, 41393780), (4, 20696890), (5, 16557512), (8, 10348445), (10, 8278756), (19, 4357240), (20, 4139378), (38, 2178620), (40, 2069689), (76, 1089310), (95, 871448), (97, 853480), (152, 544655), (190, 435724), (194, 426740), (380, 217862), (388, 213370), (485, 170696), (760, 108931), (776, 106685), (970, 85348), (1123, 73720), (1843, 44920), (1940, 42674), (2246, 36860), (3686, 22460), (3880, 21337), (4492, 18430), (5615, 14744), (7372, 11230), (8984, 9215)]