30868040

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{15749}}^1$

素因数の和:15774

約数の個数: 48

約数和(自身を含む): 80797500

約数和(自身を除く): 49929460

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, 15749, 31498, 62996, 78745, 110243, 125992, 157490, 220486, 314980, 440972, 551215, 629960, 771701, 881944, 1102430, 1543402, 2204860, 3086804, 3858505, 4409720, 6173608, 7717010, 15434020, 30868040]

約数ペア:

[(1, 30868040), (2, 15434020), (4, 7717010), (5, 6173608), (7, 4409720), (8, 3858505), (10, 3086804), (14, 2204860), (20, 1543402), (28, 1102430), (35, 881944), (40, 771701), (49, 629960), (56, 551215), (70, 440972), (98, 314980), (140, 220486), (196, 157490), (245, 125992), (280, 110243), (392, 78745), (490, 62996), (980, 31498), (1960, 15749)]