256481550

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{2579}}^1$

素因数の和:2627

約数の個数: 144

約数和(自身を含む): 786043440

約数和(自身を除く): 529561890

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 17, 18, 25, 26, 30, 34, 39, 45, 50, 51, 65, 75, 78, 85, 90, 102, 117, 130, 150, 153, 170, 195, 221, 225, 234, 255, 306, 325, 390, 425, 442, 450, 510, 585, 650, 663, 765, 850, 975, 1105, 1170, 1275, 1326, 1530, 1950, 1989, 2210, 2550, 2579, 2925, 3315, 3825, 3978, 5158, 5525, 5850, 6630, 7650, 7737, 9945, 11050, 12895, 15474, 16575, 19890, 23211, 25790, 33150, 33527, 38685, 43843, 46422, 49725, 64475, 67054, 77370, 87686, 99450, 100581, 116055, 128950, 131529, 167635, 193425, 201162, 219215, 232110, 263058, 301743, 335270, 386850, 394587, 438430, 502905, 569959, 580275, 603486, 657645, 789174, 838175, 1005810, 1096075, 1139918, 1160550, 1315290, 1508715, 1676350, 1709877, 1972935, 2192150, 2514525, 2849795, 3017430, 3288225, 3419754, 3945870, 5029050, 5129631, 5699590, 6576450, 7543575, 8549385, 9864675, 10259262, 14248975, 15087150, 17098770, 19729350, 25648155, 28497950, 42746925, 51296310, 85493850, 128240775, 256481550]

約数ペア:

[(1, 256481550), (2, 128240775), (3, 85493850), (5, 51296310), (6, 42746925), (9, 28497950), (10, 25648155), (13, 19729350), (15, 17098770), (17, 15087150), (18, 14248975), (25, 10259262), (26, 9864675), (30, 8549385), (34, 7543575), (39, 6576450), (45, 5699590), (50, 5129631), (51, 5029050), (65, 3945870), (75, 3419754), (78, 3288225), (85, 3017430), (90, 2849795), (102, 2514525), (117, 2192150), (130, 1972935), (150, 1709877), (153, 1676350), (170, 1508715), (195, 1315290), (221, 1160550), (225, 1139918), (234, 1096075), (255, 1005810), (306, 838175), (325, 789174), (390, 657645), (425, 603486), (442, 580275), (450, 569959), (510, 502905), (585, 438430), (650, 394587), (663, 386850), (765, 335270), (850, 301743), (975, 263058), (1105, 232110), (1170, 219215), (1275, 201162), (1326, 193425), (1530, 167635), (1950, 131529), (1989, 128950), (2210, 116055), (2550, 100581), (2579, 99450), (2925, 87686), (3315, 77370), (3825, 67054), (3978, 64475), (5158, 49725), (5525, 46422), (5850, 43843), (6630, 38685), (7650, 33527), (7737, 33150), (9945, 25790), (11050, 23211), (12895, 19890), (15474, 16575)]