30187780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{3037}}^1$

素因数の和:3124

約数の個数: 48

約数和(自身を含む): 73495296

約数和(自身を除く): 43307516

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1988, 2485, 3037, 4970, 6074, 9940, 12148, 15185, 21259, 30370, 42518, 60740, 85036, 106295, 212590, 215627, 425180, 431254, 862508, 1078135, 1509389, 2156270, 3018778, 4312540, 6037556, 7546945, 15093890, 30187780]

約数ペア:

[(1, 30187780), (2, 15093890), (4, 7546945), (5, 6037556), (7, 4312540), (10, 3018778), (14, 2156270), (20, 1509389), (28, 1078135), (35, 862508), (70, 431254), (71, 425180), (140, 215627), (142, 212590), (284, 106295), (355, 85036), (497, 60740), (710, 42518), (994, 30370), (1420, 21259), (1988, 15185), (2485, 12148), (3037, 9940), (4970, 6074)]