1620227600

素因数分解:

$2^4\times 5^2\times {\mathrm{1973}}^1\times {\mathrm{2053}}^1$

素因数の和:4044

約数の個数: 60

約数和(自身を含む): 3896466756

約数和(自身を除く): 2276239156

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 1973, 2053, 3946, 4106, 7892, 8212, 9865, 10265, 15784, 16424, 19730, 20530, 31568, 32848, 39460, 41060, 49325, 51325, 78920, 82120, 98650, 102650, 157840, 164240, 197300, 205300, 394600, 410600, 789200, 821200, 4050569, 8101138, 16202276, 20252845, 32404552, 40505690, 64809104, 81011380, 101264225, 162022760, 202528450, 324045520, 405056900, 810113800, 1620227600]

約数ペア:

[(1, 1620227600), (2, 810113800), (4, 405056900), (5, 324045520), (8, 202528450), (10, 162022760), (16, 101264225), (20, 81011380), (25, 64809104), (40, 40505690), (50, 32404552), (80, 20252845), (100, 16202276), (200, 8101138), (400, 4050569), (1973, 821200), (2053, 789200), (3946, 410600), (4106, 394600), (7892, 205300), (8212, 197300), (9865, 164240), (10265, 157840), (15784, 102650), (16424, 98650), (19730, 82120), (20530, 78920), (31568, 51325), (32848, 49325), (39460, 41060)]