256040880

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{20129}}^1$

素因数の和:20198

約数の個数: 80

約数和(自身を含む): 808742880

約数和(自身を除く): 552702000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 53, 60, 80, 106, 120, 159, 212, 240, 265, 318, 424, 530, 636, 795, 848, 1060, 1272, 1590, 2120, 2544, 3180, 4240, 6360, 12720, 20129, 40258, 60387, 80516, 100645, 120774, 161032, 201290, 241548, 301935, 322064, 402580, 483096, 603870, 805160, 966192, 1066837, 1207740, 1610320, 2133674, 2415480, 3200511, 4267348, 4830960, 5334185, 6401022, 8534696, 10668370, 12802044, 16002555, 17069392, 21336740, 25604088, 32005110, 42673480, 51208176, 64010220, 85346960, 128020440, 256040880]

約数ペア:

[(1, 256040880), (2, 128020440), (3, 85346960), (4, 64010220), (5, 51208176), (6, 42673480), (8, 32005110), (10, 25604088), (12, 21336740), (15, 17069392), (16, 16002555), (20, 12802044), (24, 10668370), (30, 8534696), (40, 6401022), (48, 5334185), (53, 4830960), (60, 4267348), (80, 3200511), (106, 2415480), (120, 2133674), (159, 1610320), (212, 1207740), (240, 1066837), (265, 966192), (318, 805160), (424, 603870), (530, 483096), (636, 402580), (795, 322064), (848, 301935), (1060, 241548), (1272, 201290), (1590, 161032), (2120, 120774), (2544, 100645), (3180, 80516), (4240, 60387), (6360, 40258), (12720, 20129)]