256403056

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{769}}^1$

素因数の和:1026

約数の個数: 80

約数和(自身を含む): 614891200

約数和(自身を除く): 358488144

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 229, 364, 458, 728, 769, 916, 1456, 1538, 1603, 1832, 2977, 3076, 3206, 3664, 5383, 5954, 6152, 6412, 9997, 10766, 11908, 12304, 12824, 19994, 20839, 21532, 23816, 25648, 39988, 41678, 43064, 47632, 69979, 79976, 83356, 86128, 139958, 159952, 166712, 176101, 279916, 333424, 352202, 559832, 704404, 1119664, 1232707, 1408808, 2289313, 2465414, 2817616, 4578626, 4930828, 9157252, 9861656, 16025191, 18314504, 19723312, 32050382, 36629008, 64100764, 128201528, 256403056]

約数ペア:

[(1, 256403056), (2, 128201528), (4, 64100764), (7, 36629008), (8, 32050382), (13, 19723312), (14, 18314504), (16, 16025191), (26, 9861656), (28, 9157252), (52, 4930828), (56, 4578626), (91, 2817616), (104, 2465414), (112, 2289313), (182, 1408808), (208, 1232707), (229, 1119664), (364, 704404), (458, 559832), (728, 352202), (769, 333424), (916, 279916), (1456, 176101), (1538, 166712), (1603, 159952), (1832, 139958), (2977, 86128), (3076, 83356), (3206, 79976), (3664, 69979), (5383, 47632), (5954, 43064), (6152, 41678), (6412, 39988), (9997, 25648), (10766, 23816), (11908, 21532), (12304, 20839), (12824, 19994)]