256502760

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{383}}^1\times {\mathrm{5581}}^1$

素因数の和:5978

約数の個数: 64

約数和(自身を含む): 771655680

約数和(自身を除く): 515152920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 383, 766, 1149, 1532, 1915, 2298, 3064, 3830, 4596, 5581, 5745, 7660, 9192, 11162, 11490, 15320, 16743, 22324, 22980, 27905, 33486, 44648, 45960, 55810, 66972, 83715, 111620, 133944, 167430, 223240, 334860, 669720, 2137523, 4275046, 6412569, 8550092, 10687615, 12825138, 17100184, 21375230, 25650276, 32062845, 42750460, 51300552, 64125690, 85500920, 128251380, 256502760]

約数ペア:

[(1, 256502760), (2, 128251380), (3, 85500920), (4, 64125690), (5, 51300552), (6, 42750460), (8, 32062845), (10, 25650276), (12, 21375230), (15, 17100184), (20, 12825138), (24, 10687615), (30, 8550092), (40, 6412569), (60, 4275046), (120, 2137523), (383, 669720), (766, 334860), (1149, 223240), (1532, 167430), (1915, 133944), (2298, 111620), (3064, 83715), (3830, 66972), (4596, 55810), (5581, 45960), (5745, 44648), (7660, 33486), (9192, 27905), (11162, 22980), (11490, 22324), (15320, 16743)]