257035940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{42697}}^1$

素因数の和:42756

約数の個数: 48

約数和(自身を含む): 631247232

約数和(自身を除く): 374211292

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 70, 86, 140, 172, 215, 301, 430, 602, 860, 1204, 1505, 3010, 6020, 42697, 85394, 170788, 213485, 298879, 426970, 597758, 853940, 1195516, 1494395, 1835971, 2988790, 3671942, 5977580, 7343884, 9179855, 12851797, 18359710, 25703594, 36719420, 51407188, 64258985, 128517970, 257035940]

約数ペア:

[(1, 257035940), (2, 128517970), (4, 64258985), (5, 51407188), (7, 36719420), (10, 25703594), (14, 18359710), (20, 12851797), (28, 9179855), (35, 7343884), (43, 5977580), (70, 3671942), (86, 2988790), (140, 1835971), (172, 1494395), (215, 1195516), (301, 853940), (430, 597758), (602, 426970), (860, 298879), (1204, 213485), (1505, 170788), (3010, 85394), (6020, 42697)]