256890368

素因数分解:

$2^9\times 7^1\times {\mathrm{229}}^1\times {\mathrm{313}}^1$

素因数の和:567

約数の個数: 80

約数和(自身を含む): 591048480

約数和(自身を除く): 334158112

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 229, 256, 313, 448, 458, 512, 626, 896, 916, 1252, 1603, 1792, 1832, 2191, 2504, 3206, 3584, 3664, 4382, 5008, 6412, 7328, 8764, 10016, 12824, 14656, 17528, 20032, 25648, 29312, 35056, 40064, 51296, 58624, 70112, 71677, 80128, 102592, 117248, 140224, 143354, 160256, 205184, 280448, 286708, 410368, 501739, 560896, 573416, 820736, 1003478, 1121792, 1146832, 2006956, 2293664, 4013912, 4587328, 8027824, 9174656, 16055648, 18349312, 32111296, 36698624, 64222592, 128445184, 256890368]

約数ペア:

[(1, 256890368), (2, 128445184), (4, 64222592), (7, 36698624), (8, 32111296), (14, 18349312), (16, 16055648), (28, 9174656), (32, 8027824), (56, 4587328), (64, 4013912), (112, 2293664), (128, 2006956), (224, 1146832), (229, 1121792), (256, 1003478), (313, 820736), (448, 573416), (458, 560896), (512, 501739), (626, 410368), (896, 286708), (916, 280448), (1252, 205184), (1603, 160256), (1792, 143354), (1832, 140224), (2191, 117248), (2504, 102592), (3206, 80128), (3584, 71677), (3664, 70112), (4382, 58624), (5008, 51296), (6412, 40064), (7328, 35056), (8764, 29312), (10016, 25648), (12824, 20032), (14656, 17528)]