256246440

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{2129}}^1$

素因数の和:2219

約数の個数: 128

約数和(自身を含む): 828144000

約数和(自身を除く): 571897560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 59, 60, 68, 85, 102, 118, 120, 136, 170, 177, 204, 236, 255, 295, 340, 354, 408, 472, 510, 590, 680, 708, 885, 1003, 1020, 1180, 1416, 1770, 2006, 2040, 2129, 2360, 3009, 3540, 4012, 4258, 5015, 6018, 6387, 7080, 8024, 8516, 10030, 10645, 12036, 12774, 15045, 17032, 20060, 21290, 24072, 25548, 30090, 31935, 36193, 40120, 42580, 51096, 60180, 63870, 72386, 85160, 108579, 120360, 125611, 127740, 144772, 180965, 217158, 251222, 255480, 289544, 361930, 376833, 434316, 502444, 542895, 628055, 723860, 753666, 868632, 1004888, 1085790, 1256110, 1447720, 1507332, 1884165, 2135387, 2171580, 2512220, 3014664, 3768330, 4270774, 4343160, 5024440, 6406161, 7536660, 8541548, 10676935, 12812322, 15073320, 17083096, 21353870, 25624644, 32030805, 42707740, 51249288, 64061610, 85415480, 128123220, 256246440]

約数ペア:

[(1, 256246440), (2, 128123220), (3, 85415480), (4, 64061610), (5, 51249288), (6, 42707740), (8, 32030805), (10, 25624644), (12, 21353870), (15, 17083096), (17, 15073320), (20, 12812322), (24, 10676935), (30, 8541548), (34, 7536660), (40, 6406161), (51, 5024440), (59, 4343160), (60, 4270774), (68, 3768330), (85, 3014664), (102, 2512220), (118, 2171580), (120, 2135387), (136, 1884165), (170, 1507332), (177, 1447720), (204, 1256110), (236, 1085790), (255, 1004888), (295, 868632), (340, 753666), (354, 723860), (408, 628055), (472, 542895), (510, 502444), (590, 434316), (680, 376833), (708, 361930), (885, 289544), (1003, 255480), (1020, 251222), (1180, 217158), (1416, 180965), (1770, 144772), (2006, 127740), (2040, 125611), (2129, 120360), (2360, 108579), (3009, 85160), (3540, 72386), (4012, 63870), (4258, 60180), (5015, 51096), (6018, 42580), (6387, 40120), (7080, 36193), (8024, 31935), (8516, 30090), (10030, 25548), (10645, 24072), (12036, 21290), (12774, 20060), (15045, 17032)]