256398688

素因数分解:

$2^5\times 7^1\times {\mathrm{13}}^3\times {\mathrm{521}}^1$

素因数の和:577

約数の個数: 96

約数和(自身を含む): 626149440

約数和(自身を除く): 369750752

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 91, 104, 112, 169, 182, 208, 224, 338, 364, 416, 521, 676, 728, 1042, 1183, 1352, 1456, 2084, 2197, 2366, 2704, 2912, 3647, 4168, 4394, 4732, 5408, 6773, 7294, 8336, 8788, 9464, 13546, 14588, 15379, 16672, 17576, 18928, 27092, 29176, 30758, 35152, 37856, 47411, 54184, 58352, 61516, 70304, 88049, 94822, 108368, 116704, 123032, 176098, 189644, 216736, 246064, 352196, 379288, 492128, 616343, 704392, 758576, 1144637, 1232686, 1408784, 1517152, 2289274, 2465372, 2817568, 4578548, 4930744, 8012459, 9157096, 9861488, 16024918, 18314192, 19722976, 32049836, 36628384, 64099672, 128199344, 256398688]

約数ペア:

[(1, 256398688), (2, 128199344), (4, 64099672), (7, 36628384), (8, 32049836), (13, 19722976), (14, 18314192), (16, 16024918), (26, 9861488), (28, 9157096), (32, 8012459), (52, 4930744), (56, 4578548), (91, 2817568), (104, 2465372), (112, 2289274), (169, 1517152), (182, 1408784), (208, 1232686), (224, 1144637), (338, 758576), (364, 704392), (416, 616343), (521, 492128), (676, 379288), (728, 352196), (1042, 246064), (1183, 216736), (1352, 189644), (1456, 176098), (2084, 123032), (2197, 116704), (2366, 108368), (2704, 94822), (2912, 88049), (3647, 70304), (4168, 61516), (4394, 58352), (4732, 54184), (5408, 47411), (6773, 37856), (7294, 35152), (8336, 30758), (8788, 29176), (9464, 27092), (13546, 18928), (14588, 17576), (15379, 16672)]