30991992

素因数分解:

$2^3\times 3^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{509}}^1$

素因数の和:620

約数の個数: 64

約数和(自身を含む): 80784000

約数和(自身を除く): 49792008

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 43, 59, 86, 118, 129, 172, 177, 236, 258, 344, 354, 472, 509, 516, 708, 1018, 1032, 1416, 1527, 2036, 2537, 3054, 4072, 5074, 6108, 7611, 10148, 12216, 15222, 20296, 21887, 30031, 30444, 43774, 60062, 60888, 65661, 87548, 90093, 120124, 131322, 175096, 180186, 240248, 262644, 360372, 525288, 720744, 1291333, 2582666, 3873999, 5165332, 7747998, 10330664, 15495996, 30991992]

約数ペア:

[(1, 30991992), (2, 15495996), (3, 10330664), (4, 7747998), (6, 5165332), (8, 3873999), (12, 2582666), (24, 1291333), (43, 720744), (59, 525288), (86, 360372), (118, 262644), (129, 240248), (172, 180186), (177, 175096), (236, 131322), (258, 120124), (344, 90093), (354, 87548), (472, 65661), (509, 60888), (516, 60062), (708, 43774), (1018, 30444), (1032, 30031), (1416, 21887), (1527, 20296), (2036, 15222), (2537, 12216), (3054, 10148), (4072, 7611), (5074, 6108)]