261021488

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{5783}}^1$

素因数の和:5842

約数の個数: 80

約数和(自身を含む): 642625536

約数和(自身を除く): 381604048

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 31, 52, 56, 62, 91, 104, 112, 124, 182, 208, 217, 248, 364, 403, 434, 496, 728, 806, 868, 1456, 1612, 1736, 2821, 3224, 3472, 5642, 5783, 6448, 11284, 11566, 22568, 23132, 40481, 45136, 46264, 75179, 80962, 92528, 150358, 161924, 179273, 300716, 323848, 358546, 526253, 601432, 647696, 717092, 1052506, 1202864, 1254911, 1434184, 2105012, 2330549, 2509822, 2868368, 4210024, 4661098, 5019644, 8420048, 9322196, 10039288, 16313843, 18644392, 20078576, 32627686, 37288784, 65255372, 130510744, 261021488]

約数ペア:

[(1, 261021488), (2, 130510744), (4, 65255372), (7, 37288784), (8, 32627686), (13, 20078576), (14, 18644392), (16, 16313843), (26, 10039288), (28, 9322196), (31, 8420048), (52, 5019644), (56, 4661098), (62, 4210024), (91, 2868368), (104, 2509822), (112, 2330549), (124, 2105012), (182, 1434184), (208, 1254911), (217, 1202864), (248, 1052506), (364, 717092), (403, 647696), (434, 601432), (496, 526253), (728, 358546), (806, 323848), (868, 300716), (1456, 179273), (1612, 161924), (1736, 150358), (2821, 92528), (3224, 80962), (3472, 75179), (5642, 46264), (5783, 45136), (6448, 40481), (11284, 23132), (11566, 22568)]