39452840

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{20129}}^1$

素因数の和:20154

約数の個数: 48

約数和(自身を含む): 103266900

約数和(自身を除く): 63814060

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, 20129, 40258, 80516, 100645, 140903, 161032, 201290, 281806, 402580, 563612, 704515, 805160, 986321, 1127224, 1409030, 1972642, 2818060, 3945284, 4931605, 5636120, 7890568, 9863210, 19726420, 39452840]

約数ペア:

[(1, 39452840), (2, 19726420), (4, 9863210), (5, 7890568), (7, 5636120), (8, 4931605), (10, 3945284), (14, 2818060), (20, 1972642), (28, 1409030), (35, 1127224), (40, 986321), (49, 805160), (56, 704515), (70, 563612), (98, 402580), (140, 281806), (196, 201290), (245, 161032), (280, 140903), (392, 100645), (490, 80516), (980, 40258), (1960, 20129)]