2109376720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{21991}}^1$

素因数の和:22124

約数の個数: 80

約数和(自身を含む): 5399475840

約数和(自身を除く): 3290099120

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 109, 110, 176, 218, 220, 436, 440, 545, 872, 880, 1090, 1199, 1744, 2180, 2398, 4360, 4796, 5995, 8720, 9592, 11990, 19184, 21991, 23980, 43982, 47960, 87964, 95920, 109955, 175928, 219910, 241901, 351856, 439820, 483802, 879640, 967604, 1209505, 1759280, 1935208, 2397019, 2419010, 3870416, 4794038, 4838020, 9588076, 9676040, 11985095, 19176152, 19352080, 23970190, 26367209, 38352304, 47940380, 52734418, 95880760, 105468836, 131836045, 191761520, 210937672, 263672090, 421875344, 527344180, 1054688360, 2109376720]

約数ペア:

[(1, 2109376720), (2, 1054688360), (4, 527344180), (5, 421875344), (8, 263672090), (10, 210937672), (11, 191761520), (16, 131836045), (20, 105468836), (22, 95880760), (40, 52734418), (44, 47940380), (55, 38352304), (80, 26367209), (88, 23970190), (109, 19352080), (110, 19176152), (176, 11985095), (218, 9676040), (220, 9588076), (436, 4838020), (440, 4794038), (545, 3870416), (872, 2419010), (880, 2397019), (1090, 1935208), (1199, 1759280), (1744, 1209505), (2180, 967604), (2398, 879640), (4360, 483802), (4796, 439820), (5995, 351856), (8720, 241901), (9592, 219910), (11990, 175928), (19184, 109955), (21991, 95920), (23980, 87964), (43982, 47960)]