128169020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{12541}}^1$

素因数の和:12630

約数の個数: 48

約数和(自身を含む): 311844288

約数和(自身を除く): 183675268

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 73, 140, 146, 292, 365, 511, 730, 1022, 1460, 2044, 2555, 5110, 10220, 12541, 25082, 50164, 62705, 87787, 125410, 175574, 250820, 351148, 438935, 877870, 915493, 1755740, 1830986, 3661972, 4577465, 6408451, 9154930, 12816902, 18309860, 25633804, 32042255, 64084510, 128169020]

約数ペア:

[(1, 128169020), (2, 64084510), (4, 32042255), (5, 25633804), (7, 18309860), (10, 12816902), (14, 9154930), (20, 6408451), (28, 4577465), (35, 3661972), (70, 1830986), (73, 1755740), (140, 915493), (146, 877870), (292, 438935), (365, 351148), (511, 250820), (730, 175574), (1022, 125410), (1460, 87787), (2044, 62705), (2555, 50164), (5110, 25082), (10220, 12541)]