20936697680

素因数分解:

$2^4\times 5^1\times {\mathrm{739}}^1\times {\mathrm{354139}}^1$

素因数の和:354891

約数の個数: 40

約数和(自身を含む): 48743829600

約数和(自身を除く): 27807131920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 739, 1478, 2956, 3695, 5912, 7390, 11824, 14780, 29560, 59120, 354139, 708278, 1416556, 1770695, 2833112, 3541390, 5666224, 7082780, 14165560, 28331120, 261708721, 523417442, 1046834884, 1308543605, 2093669768, 2617087210, 4187339536, 5234174420, 10468348840, 20936697680]

約数ペア:

[(1, 20936697680), (2, 10468348840), (4, 5234174420), (5, 4187339536), (8, 2617087210), (10, 2093669768), (16, 1308543605), (20, 1046834884), (40, 523417442), (80, 261708721), (739, 28331120), (1478, 14165560), (2956, 7082780), (3695, 5666224), (5912, 3541390), (7390, 2833112), (11824, 1770695), (14780, 1416556), (29560, 708278), (59120, 354139)]