38458780

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1\times {\mathrm{241}}^1$

素因数の和:430

約数の個数: 48

約数和(自身を含む): 82938240

約数和(自身を除く): 44479460

約数列:

[1, 2, 4, 5, 10, 20, 79, 101, 158, 202, 241, 316, 395, 404, 482, 505, 790, 964, 1010, 1205, 1580, 2020, 2410, 4820, 7979, 15958, 19039, 24341, 31916, 38078, 39895, 48682, 76156, 79790, 95195, 97364, 121705, 159580, 190390, 243410, 380780, 486820, 1922939, 3845878, 7691756, 9614695, 19229390, 38458780]

約数ペア:

[(1, 38458780), (2, 19229390), (4, 9614695), (5, 7691756), (10, 3845878), (20, 1922939), (79, 486820), (101, 380780), (158, 243410), (202, 190390), (241, 159580), (316, 121705), (395, 97364), (404, 95195), (482, 79790), (505, 76156), (790, 48682), (964, 39895), (1010, 38078), (1205, 31916), (1580, 24341), (2020, 19039), (2410, 15958), (4820, 7979)]