405440920

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{149}}^1\times {\mathrm{1153}}^1$

素因数の和:1372

約数の個数: 64

約数和(自身を含む): 934740000

約数和(自身を除く): 529299080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 118, 149, 236, 295, 298, 472, 590, 596, 745, 1153, 1180, 1192, 1490, 2306, 2360, 2980, 4612, 5765, 5960, 8791, 9224, 11530, 17582, 23060, 35164, 43955, 46120, 68027, 70328, 87910, 136054, 171797, 175820, 272108, 340135, 343594, 351640, 544216, 680270, 687188, 858985, 1360540, 1374376, 1717970, 2721080, 3435940, 6871880, 10136023, 20272046, 40544092, 50680115, 81088184, 101360230, 202720460, 405440920]

約数ペア:

[(1, 405440920), (2, 202720460), (4, 101360230), (5, 81088184), (8, 50680115), (10, 40544092), (20, 20272046), (40, 10136023), (59, 6871880), (118, 3435940), (149, 2721080), (236, 1717970), (295, 1374376), (298, 1360540), (472, 858985), (590, 687188), (596, 680270), (745, 544216), (1153, 351640), (1180, 343594), (1192, 340135), (1490, 272108), (2306, 175820), (2360, 171797), (2980, 136054), (4612, 87910), (5765, 70328), (5960, 68027), (8791, 46120), (9224, 43955), (11530, 35164), (17582, 23060)]