2678240

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{881}}^1$

素因数の和:915

約数の個数: 48

約数和(自身を含む): 6667920

約数和(自身を除く): 3989680

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 380, 608, 760, 881, 1520, 1762, 3040, 3524, 4405, 7048, 8810, 14096, 16739, 17620, 28192, 33478, 35240, 66956, 70480, 83695, 133912, 140960, 167390, 267824, 334780, 535648, 669560, 1339120, 2678240]

約数ペア:

[(1, 2678240), (2, 1339120), (4, 669560), (5, 535648), (8, 334780), (10, 267824), (16, 167390), (19, 140960), (20, 133912), (32, 83695), (38, 70480), (40, 66956), (76, 35240), (80, 33478), (95, 28192), (152, 17620), (160, 16739), (190, 14096), (304, 8810), (380, 7048), (608, 4405), (760, 3524), (881, 3040), (1520, 1762)]