19284440

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{9839}}^1$

素因数の和:9864

約数の個数: 48

約数和(自身を含む): 50479200

約数和(自身を除く): 31194760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 9839, 19678, 39356, 49195, 68873, 78712, 98390, 137746, 196780, 275492, 344365, 393560, 482111, 550984, 688730, 964222, 1377460, 1928444, 2410555, 2754920, 3856888, 4821110, 9642220, 19284440]

約数ペア:

[(1, 19284440), (2, 9642220), (4, 4821110), (5, 3856888), (7, 2754920), (8, 2410555), (10, 1928444), (14, 1377460), (20, 964222), (28, 688730), (35, 550984), (40, 482111), (49, 393560), (56, 344365), (70, 275492), (98, 196780), (140, 137746), (196, 98390), (245, 78712), (280, 68873), (392, 49195), (490, 39356), (980, 19678), (1960, 9839)]