255836840

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{29}}^1\times {\mathrm{643}}^1$

素因数の和:704

約数の個数: 128

約数和(自身を含む): 695520000

約数和(自身を除く): 439683160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 29, 35, 40, 49, 56, 58, 70, 98, 116, 140, 145, 196, 203, 232, 245, 280, 290, 343, 392, 406, 490, 580, 643, 686, 812, 980, 1015, 1160, 1286, 1372, 1421, 1624, 1715, 1960, 2030, 2572, 2744, 2842, 3215, 3430, 4060, 4501, 5144, 5684, 6430, 6860, 7105, 8120, 9002, 9947, 11368, 12860, 13720, 14210, 18004, 18647, 19894, 22505, 25720, 28420, 31507, 36008, 37294, 39788, 45010, 49735, 56840, 63014, 74588, 79576, 90020, 93235, 99470, 126028, 130529, 149176, 157535, 180040, 186470, 198940, 220549, 252056, 261058, 315070, 372940, 397880, 441098, 522116, 630140, 652645, 745880, 882196, 913703, 1044232, 1102745, 1260280, 1305290, 1764392, 1827406, 2205490, 2610580, 3654812, 4410980, 4568515, 5221160, 6395921, 7309624, 8821960, 9137030, 12791842, 18274060, 25583684, 31979605, 36548120, 51167368, 63959210, 127918420, 255836840]

約数ペア:

[(1, 255836840), (2, 127918420), (4, 63959210), (5, 51167368), (7, 36548120), (8, 31979605), (10, 25583684), (14, 18274060), (20, 12791842), (28, 9137030), (29, 8821960), (35, 7309624), (40, 6395921), (49, 5221160), (56, 4568515), (58, 4410980), (70, 3654812), (98, 2610580), (116, 2205490), (140, 1827406), (145, 1764392), (196, 1305290), (203, 1260280), (232, 1102745), (245, 1044232), (280, 913703), (290, 882196), (343, 745880), (392, 652645), (406, 630140), (490, 522116), (580, 441098), (643, 397880), (686, 372940), (812, 315070), (980, 261058), (1015, 252056), (1160, 220549), (1286, 198940), (1372, 186470), (1421, 180040), (1624, 157535), (1715, 149176), (1960, 130529), (2030, 126028), (2572, 99470), (2744, 93235), (2842, 90020), (3215, 79576), (3430, 74588), (4060, 63014), (4501, 56840), (5144, 49735), (5684, 45010), (6430, 39788), (6860, 37294), (7105, 36008), (8120, 31507), (9002, 28420), (9947, 25720), (11368, 22505), (12860, 19894), (13720, 18647), (14210, 18004)]