19538680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{2251}}^1$

素因数の和:2300

約数の個数: 64

約数和(自身を含む): 51886080

約数和(自身を除く): 32347400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 155, 217, 248, 280, 310, 434, 620, 868, 1085, 1240, 1736, 2170, 2251, 4340, 4502, 8680, 9004, 11255, 15757, 18008, 22510, 31514, 45020, 63028, 69781, 78785, 90040, 126056, 139562, 157570, 279124, 315140, 348905, 488467, 558248, 630280, 697810, 976934, 1395620, 1953868, 2442335, 2791240, 3907736, 4884670, 9769340, 19538680]

約数ペア:

[(1, 19538680), (2, 9769340), (4, 4884670), (5, 3907736), (7, 2791240), (8, 2442335), (10, 1953868), (14, 1395620), (20, 976934), (28, 697810), (31, 630280), (35, 558248), (40, 488467), (56, 348905), (62, 315140), (70, 279124), (124, 157570), (140, 139562), (155, 126056), (217, 90040), (248, 78785), (280, 69781), (310, 63028), (434, 45020), (620, 31514), (868, 22510), (1085, 18008), (1240, 15757), (1736, 11255), (2170, 9004), (2251, 8680), (4340, 4502)]