256455472

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{797}}^1$

素因数の和:855

約数の個数: 120

約数和(自身を含む): 651895776

約数和(自身を除く): 395440304

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 17, 26, 28, 34, 52, 56, 68, 91, 104, 112, 119, 136, 169, 182, 208, 221, 238, 272, 338, 364, 442, 476, 676, 728, 797, 884, 952, 1183, 1352, 1456, 1547, 1594, 1768, 1904, 2366, 2704, 2873, 3094, 3188, 3536, 4732, 5579, 5746, 6188, 6376, 9464, 10361, 11158, 11492, 12376, 12752, 13549, 18928, 20111, 20722, 22316, 22984, 24752, 27098, 40222, 41444, 44632, 45968, 54196, 72527, 80444, 82888, 89264, 94843, 108392, 134693, 145054, 160888, 165776, 176137, 189686, 216784, 269386, 290108, 321776, 352274, 379372, 538772, 580216, 704548, 758744, 942851, 1077544, 1160432, 1232959, 1409096, 1517488, 1885702, 2155088, 2289781, 2465918, 2818192, 3771404, 4579562, 4931836, 7542808, 9159124, 9863672, 15085616, 16028467, 18318248, 19727344, 32056934, 36636496, 64113868, 128227736, 256455472]

約数ペア:

[(1, 256455472), (2, 128227736), (4, 64113868), (7, 36636496), (8, 32056934), (13, 19727344), (14, 18318248), (16, 16028467), (17, 15085616), (26, 9863672), (28, 9159124), (34, 7542808), (52, 4931836), (56, 4579562), (68, 3771404), (91, 2818192), (104, 2465918), (112, 2289781), (119, 2155088), (136, 1885702), (169, 1517488), (182, 1409096), (208, 1232959), (221, 1160432), (238, 1077544), (272, 942851), (338, 758744), (364, 704548), (442, 580216), (476, 538772), (676, 379372), (728, 352274), (797, 321776), (884, 290108), (952, 269386), (1183, 216784), (1352, 189686), (1456, 176137), (1547, 165776), (1594, 160888), (1768, 145054), (1904, 134693), (2366, 108392), (2704, 94843), (2873, 89264), (3094, 82888), (3188, 80444), (3536, 72527), (4732, 54196), (5579, 45968), (5746, 44632), (6188, 41444), (6376, 40222), (9464, 27098), (10361, 24752), (11158, 22984), (11492, 22316), (12376, 20722), (12752, 20111), (13549, 18928)]