19877360

素因数分解:

$2^4\times 5^1\times {\mathrm{419}}^1\times {\mathrm{593}}^1$

素因数の和:1025

約数の個数: 40

約数和(自身を含む): 46403280

約数和(自身を除く): 26525920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 419, 593, 838, 1186, 1676, 2095, 2372, 2965, 3352, 4190, 4744, 5930, 6704, 8380, 9488, 11860, 16760, 23720, 33520, 47440, 248467, 496934, 993868, 1242335, 1987736, 2484670, 3975472, 4969340, 9938680, 19877360]

約数ペア:

[(1, 19877360), (2, 9938680), (4, 4969340), (5, 3975472), (8, 2484670), (10, 1987736), (16, 1242335), (20, 993868), (40, 496934), (80, 248467), (419, 47440), (593, 33520), (838, 23720), (1186, 16760), (1676, 11860), (2095, 9488), (2372, 8380), (2965, 6704), (3352, 5930), (4190, 4744)]