21768004920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{449}}^1\times {\mathrm{404009}}^1$

素因数の和:404472

約数の個数: 64

約数和(自身を含む): 65449620000

約数和(自身を除く): 43681615080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 449, 898, 1347, 1796, 2245, 2694, 3592, 4490, 5388, 6735, 8980, 10776, 13470, 17960, 26940, 53880, 404009, 808018, 1212027, 1616036, 2020045, 2424054, 3232072, 4040090, 4848108, 6060135, 8080180, 9696216, 12120270, 16160360, 24240540, 48481080, 181400041, 362800082, 544200123, 725600164, 907000205, 1088400246, 1451200328, 1814000410, 2176800492, 2721000615, 3628000820, 4353600984, 5442001230, 7256001640, 10884002460, 21768004920]

約数ペア:

[(1, 21768004920), (2, 10884002460), (3, 7256001640), (4, 5442001230), (5, 4353600984), (6, 3628000820), (8, 2721000615), (10, 2176800492), (12, 1814000410), (15, 1451200328), (20, 1088400246), (24, 907000205), (30, 725600164), (40, 544200123), (60, 362800082), (120, 181400041), (449, 48481080), (898, 24240540), (1347, 16160360), (1796, 12120270), (2245, 9696216), (2694, 8080180), (3592, 6060135), (4490, 4848108), (5388, 4040090), (6735, 3232072), (8980, 2424054), (10776, 2020045), (13470, 1616036), (17960, 1212027), (26940, 808018), (53880, 404009)]