80344460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{647}}^1\times {\mathrm{887}}^1$

素因数の和:1550

約数の個数: 48

約数和(自身を含む): 193342464

約数和(自身を除く): 112998004

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 647, 887, 1294, 1774, 2588, 3235, 3548, 4435, 4529, 6209, 6470, 8870, 9058, 12418, 12940, 17740, 18116, 22645, 24836, 31045, 45290, 62090, 90580, 124180, 573889, 1147778, 2295556, 2869445, 4017223, 5738890, 8034446, 11477780, 16068892, 20086115, 40172230, 80344460]

約数ペア:

[(1, 80344460), (2, 40172230), (4, 20086115), (5, 16068892), (7, 11477780), (10, 8034446), (14, 5738890), (20, 4017223), (28, 2869445), (35, 2295556), (70, 1147778), (140, 573889), (647, 124180), (887, 90580), (1294, 62090), (1774, 45290), (2588, 31045), (3235, 24836), (3548, 22645), (4435, 18116), (4529, 17740), (6209, 12940), (6470, 12418), (8870, 9058)]