64346620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{379}}^1\times {\mathrm{653}}^1$

素因数の和:1054

約数の個数: 48

約数和(自身を含む): 146129760

約数和(自身を除く): 81783140

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 379, 653, 758, 1306, 1516, 1895, 2612, 3265, 3790, 4927, 6530, 7580, 8489, 9854, 13060, 16978, 19708, 24635, 33956, 42445, 49270, 84890, 98540, 169780, 247487, 494974, 989948, 1237435, 2474870, 3217331, 4949740, 6434662, 12869324, 16086655, 32173310, 64346620]

約数ペア:

[(1, 64346620), (2, 32173310), (4, 16086655), (5, 12869324), (10, 6434662), (13, 4949740), (20, 3217331), (26, 2474870), (52, 1237435), (65, 989948), (130, 494974), (260, 247487), (379, 169780), (653, 98540), (758, 84890), (1306, 49270), (1516, 42445), (1895, 33956), (2612, 24635), (3265, 19708), (3790, 16978), (4927, 13060), (6530, 9854), (7580, 8489)]