4520740

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{659}}^1$

素因数の和:689

約数の個数: 48

約数和(自身を含む): 11088000

約数和(自身を除く): 6567260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 659, 686, 980, 1318, 1372, 1715, 2636, 3295, 3430, 4613, 6590, 6860, 9226, 13180, 18452, 23065, 32291, 46130, 64582, 92260, 129164, 161455, 226037, 322910, 452074, 645820, 904148, 1130185, 2260370, 4520740]

約数ペア:

[(1, 4520740), (2, 2260370), (4, 1130185), (5, 904148), (7, 645820), (10, 452074), (14, 322910), (20, 226037), (28, 161455), (35, 129164), (49, 92260), (70, 64582), (98, 46130), (140, 32291), (196, 23065), (245, 18452), (343, 13180), (490, 9226), (659, 6860), (686, 6590), (980, 4613), (1318, 3430), (1372, 3295), (1715, 2636)]