311904680

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{149}}^1\times {\mathrm{887}}^1$

素因数の和:1106

約数の個数: 64

約数和(自身を含む): 719280000

約数和(自身を除く): 407375320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 118, 149, 236, 295, 298, 472, 590, 596, 745, 887, 1180, 1192, 1490, 1774, 2360, 2980, 3548, 4435, 5960, 7096, 8791, 8870, 17582, 17740, 35164, 35480, 43955, 52333, 70328, 87910, 104666, 132163, 175820, 209332, 261665, 264326, 351640, 418664, 523330, 528652, 660815, 1046660, 1057304, 1321630, 2093320, 2643260, 5286520, 7797617, 15595234, 31190468, 38988085, 62380936, 77976170, 155952340, 311904680]

約数ペア:

[(1, 311904680), (2, 155952340), (4, 77976170), (5, 62380936), (8, 38988085), (10, 31190468), (20, 15595234), (40, 7797617), (59, 5286520), (118, 2643260), (149, 2093320), (236, 1321630), (295, 1057304), (298, 1046660), (472, 660815), (590, 528652), (596, 523330), (745, 418664), (887, 351640), (1180, 264326), (1192, 261665), (1490, 209332), (1774, 175820), (2360, 132163), (2980, 104666), (3548, 87910), (4435, 70328), (5960, 52333), (7096, 43955), (8791, 35480), (8870, 35164), (17582, 17740)]