939820

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{137}}^1$

素因数の和:167

約数の個数: 48

約数和(自身を含む): 2318400

約数和(自身を除く): 1378580

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 137, 140, 196, 245, 274, 343, 490, 548, 685, 686, 959, 980, 1370, 1372, 1715, 1918, 2740, 3430, 3836, 4795, 6713, 6860, 9590, 13426, 19180, 26852, 33565, 46991, 67130, 93982, 134260, 187964, 234955, 469910, 939820]

約数ペア:

[(1, 939820), (2, 469910), (4, 234955), (5, 187964), (7, 134260), (10, 93982), (14, 67130), (20, 46991), (28, 33565), (35, 26852), (49, 19180), (70, 13426), (98, 9590), (137, 6860), (140, 6713), (196, 4795), (245, 3836), (274, 3430), (343, 2740), (490, 1918), (548, 1715), (685, 1372), (686, 1370), (959, 980)]