19957700

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{4073}}^1$

素因数の和:4101

約数の個数: 54

約数和(自身を含む): 50391306

約数和(自身を除く): 30433606

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 98, 100, 140, 175, 196, 245, 350, 490, 700, 980, 1225, 2450, 4073, 4900, 8146, 16292, 20365, 28511, 40730, 57022, 81460, 101825, 114044, 142555, 199577, 203650, 285110, 399154, 407300, 570220, 712775, 798308, 997885, 1425550, 1995770, 2851100, 3991540, 4989425, 9978850, 19957700]

約数ペア:

[(1, 19957700), (2, 9978850), (4, 4989425), (5, 3991540), (7, 2851100), (10, 1995770), (14, 1425550), (20, 997885), (25, 798308), (28, 712775), (35, 570220), (49, 407300), (50, 399154), (70, 285110), (98, 203650), (100, 199577), (140, 142555), (175, 114044), (196, 101825), (245, 81460), (350, 57022), (490, 40730), (700, 28511), (980, 20365), (1225, 16292), (2450, 8146), (4073, 4900)]