256791480

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{227}}^1\times {\mathrm{857}}^1$

素因数の和:1109

約数の個数: 128

約数和(自身を含む): 845095680

約数和(自身を除く): 588304200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 110, 120, 132, 165, 220, 227, 264, 330, 440, 454, 660, 681, 857, 908, 1135, 1320, 1362, 1714, 1816, 2270, 2497, 2571, 2724, 3405, 3428, 4285, 4540, 4994, 5142, 5448, 6810, 6856, 7491, 8570, 9080, 9427, 9988, 10284, 12485, 12855, 13620, 14982, 17140, 18854, 19976, 20568, 24970, 25710, 27240, 28281, 29964, 34280, 37455, 37708, 47135, 49940, 51420, 56562, 59928, 74910, 75416, 94270, 99880, 102840, 113124, 141405, 149820, 188540, 194539, 226248, 282810, 299640, 377080, 389078, 565620, 583617, 778156, 972695, 1131240, 1167234, 1556312, 1945390, 2139929, 2334468, 2918085, 3890780, 4279858, 4668936, 5836170, 6419787, 7781560, 8559716, 10699645, 11672340, 12839574, 17119432, 21399290, 23344680, 25679148, 32098935, 42798580, 51358296, 64197870, 85597160, 128395740, 256791480]

約数ペア:

[(1, 256791480), (2, 128395740), (3, 85597160), (4, 64197870), (5, 51358296), (6, 42798580), (8, 32098935), (10, 25679148), (11, 23344680), (12, 21399290), (15, 17119432), (20, 12839574), (22, 11672340), (24, 10699645), (30, 8559716), (33, 7781560), (40, 6419787), (44, 5836170), (55, 4668936), (60, 4279858), (66, 3890780), (88, 2918085), (110, 2334468), (120, 2139929), (132, 1945390), (165, 1556312), (220, 1167234), (227, 1131240), (264, 972695), (330, 778156), (440, 583617), (454, 565620), (660, 389078), (681, 377080), (857, 299640), (908, 282810), (1135, 226248), (1320, 194539), (1362, 188540), (1714, 149820), (1816, 141405), (2270, 113124), (2497, 102840), (2571, 99880), (2724, 94270), (3405, 75416), (3428, 74910), (4285, 59928), (4540, 56562), (4994, 51420), (5142, 49940), (5448, 47135), (6810, 37708), (6856, 37455), (7491, 34280), (8570, 29964), (9080, 28281), (9427, 27240), (9988, 25710), (10284, 24970), (12485, 20568), (12855, 19976), (13620, 18854), (14982, 17140)]