201473860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{20269}}^1$

素因数の和:20356

約数の個数: 48

約数和(自身を含む): 490371840

約数和(自身を除く): 288897980

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, 4970, 9940, 20269, 40538, 81076, 101345, 141883, 202690, 283766, 405380, 567532, 709415, 1418830, 1439099, 2837660, 2878198, 5756396, 7195495, 10073693, 14390990, 20147386, 28781980, 40294772, 50368465, 100736930, 201473860]

約数ペア:

[(1, 201473860), (2, 100736930), (4, 50368465), (5, 40294772), (7, 28781980), (10, 20147386), (14, 14390990), (20, 10073693), (28, 7195495), (35, 5756396), (70, 2878198), (71, 2837660), (140, 1439099), (142, 1418830), (284, 709415), (355, 567532), (497, 405380), (710, 283766), (994, 202690), (1420, 141883), (1988, 101345), (2485, 81076), (4970, 40538), (9940, 20269)]