78091900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1787}}^1$

素因数の和:1843

約数の個数: 72

約数和(自身を含む): 186238080

約数和(自身を除く): 108146180

約数列:

[1, 2, 4, 5, 10, 19, 20, 23, 25, 38, 46, 50, 76, 92, 95, 100, 115, 190, 230, 380, 437, 460, 475, 575, 874, 950, 1150, 1748, 1787, 1900, 2185, 2300, 3574, 4370, 7148, 8740, 8935, 10925, 17870, 21850, 33953, 35740, 41101, 43700, 44675, 67906, 82202, 89350, 135812, 164404, 169765, 178700, 205505, 339530, 411010, 679060, 780919, 822020, 848825, 1027525, 1561838, 1697650, 2055050, 3123676, 3395300, 3904595, 4110100, 7809190, 15618380, 19522975, 39045950, 78091900]

約数ペア:

[(1, 78091900), (2, 39045950), (4, 19522975), (5, 15618380), (10, 7809190), (19, 4110100), (20, 3904595), (23, 3395300), (25, 3123676), (38, 2055050), (46, 1697650), (50, 1561838), (76, 1027525), (92, 848825), (95, 822020), (100, 780919), (115, 679060), (190, 411010), (230, 339530), (380, 205505), (437, 178700), (460, 169765), (475, 164404), (575, 135812), (874, 89350), (950, 82202), (1150, 67906), (1748, 44675), (1787, 43700), (1900, 41101), (2185, 35740), (2300, 33953), (3574, 21850), (4370, 17870), (7148, 10925), (8740, 8935)]