39920060

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{547}}^1$

素因数の和:686

約数の個数: 48

約数和(自身を含む): 87000480

約数和(自身を除く): 47080420

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 89, 164, 178, 205, 356, 410, 445, 547, 820, 890, 1094, 1780, 2188, 2735, 3649, 5470, 7298, 10940, 14596, 18245, 22427, 36490, 44854, 48683, 72980, 89708, 97366, 112135, 194732, 224270, 243415, 448540, 486830, 973660, 1996003, 3992006, 7984012, 9980015, 19960030, 39920060]

約数ペア:

[(1, 39920060), (2, 19960030), (4, 9980015), (5, 7984012), (10, 3992006), (20, 1996003), (41, 973660), (82, 486830), (89, 448540), (164, 243415), (178, 224270), (205, 194732), (356, 112135), (410, 97366), (445, 89708), (547, 72980), (820, 48683), (890, 44854), (1094, 36490), (1780, 22427), (2188, 18245), (2735, 14596), (3649, 10940), (5470, 7298)]