255211840

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1979}}^1$

素因数の和:2040

約数の個数: 112

約数和(自身を含む): 675924480

約数和(自身を除く): 420712640

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 64, 65, 80, 104, 124, 130, 155, 160, 208, 248, 260, 310, 320, 403, 416, 496, 520, 620, 806, 832, 992, 1040, 1240, 1612, 1979, 1984, 2015, 2080, 2480, 3224, 3958, 4030, 4160, 4960, 6448, 7916, 8060, 9895, 9920, 12896, 15832, 16120, 19790, 25727, 25792, 31664, 32240, 39580, 51454, 61349, 63328, 64480, 79160, 102908, 122698, 126656, 128635, 128960, 158320, 205816, 245396, 257270, 306745, 316640, 411632, 490792, 514540, 613490, 633280, 797537, 823264, 981584, 1029080, 1226980, 1595074, 1646528, 1963168, 2058160, 2453960, 3190148, 3926336, 3987685, 4116320, 4907920, 6380296, 7975370, 8232640, 9815840, 12760592, 15950740, 19631680, 25521184, 31901480, 51042368, 63802960, 127605920, 255211840]

約数ペア:

[(1, 255211840), (2, 127605920), (4, 63802960), (5, 51042368), (8, 31901480), (10, 25521184), (13, 19631680), (16, 15950740), (20, 12760592), (26, 9815840), (31, 8232640), (32, 7975370), (40, 6380296), (52, 4907920), (62, 4116320), (64, 3987685), (65, 3926336), (80, 3190148), (104, 2453960), (124, 2058160), (130, 1963168), (155, 1646528), (160, 1595074), (208, 1226980), (248, 1029080), (260, 981584), (310, 823264), (320, 797537), (403, 633280), (416, 613490), (496, 514540), (520, 490792), (620, 411632), (806, 316640), (832, 306745), (992, 257270), (1040, 245396), (1240, 205816), (1612, 158320), (1979, 128960), (1984, 128635), (2015, 126656), (2080, 122698), (2480, 102908), (3224, 79160), (3958, 64480), (4030, 63328), (4160, 61349), (4960, 51454), (6448, 39580), (7916, 32240), (8060, 31664), (9895, 25792), (9920, 25727), (12896, 19790), (15832, 16120)]