138481840

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{35327}}^1$

素因数の和:35354

約数の個数: 60

約数和(自身を含む): 374547456

約数和(自身を除く): 236065616

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 35327, 70654, 141308, 176635, 247289, 282616, 353270, 494578, 565232, 706540, 989156, 1236445, 1413080, 1731023, 1978312, 2472890, 2826160, 3462046, 3956624, 4945780, 6924092, 8655115, 9891560, 13848184, 17310230, 19783120, 27696368, 34620460, 69240920, 138481840]

約数ペア:

[(1, 138481840), (2, 69240920), (4, 34620460), (5, 27696368), (7, 19783120), (8, 17310230), (10, 13848184), (14, 9891560), (16, 8655115), (20, 6924092), (28, 4945780), (35, 3956624), (40, 3462046), (49, 2826160), (56, 2472890), (70, 1978312), (80, 1731023), (98, 1413080), (112, 1236445), (140, 989156), (196, 706540), (245, 565232), (280, 494578), (392, 353270), (490, 282616), (560, 247289), (784, 176635), (980, 141308), (1960, 70654), (3920, 35327)]