20934540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{109}}^1$

素因数の和:232

約数の個数: 144

約数和(自身を含む): 70630560

約数和(自身を除く): 49696020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 97, 99, 109, 110, 132, 165, 180, 194, 198, 218, 220, 291, 327, 330, 388, 396, 436, 485, 495, 545, 582, 654, 660, 873, 970, 981, 990, 1067, 1090, 1164, 1199, 1308, 1455, 1635, 1746, 1940, 1962, 1980, 2134, 2180, 2398, 2910, 3201, 3270, 3492, 3597, 3924, 4268, 4365, 4796, 4905, 5335, 5820, 5995, 6402, 6540, 7194, 8730, 9603, 9810, 10573, 10670, 10791, 11990, 12804, 14388, 16005, 17460, 17985, 19206, 19620, 21146, 21340, 21582, 23980, 31719, 32010, 35970, 38412, 42292, 43164, 48015, 52865, 53955, 63438, 64020, 71940, 95157, 96030, 105730, 107910, 116303, 126876, 158595, 190314, 192060, 211460, 215820, 232606, 317190, 348909, 380628, 465212, 475785, 581515, 634380, 697818, 951570, 1046727, 1163030, 1395636, 1744545, 1903140, 2093454, 2326060, 3489090, 4186908, 5233635, 6978180, 10467270, 20934540]

約数ペア:

[(1, 20934540), (2, 10467270), (3, 6978180), (4, 5233635), (5, 4186908), (6, 3489090), (9, 2326060), (10, 2093454), (11, 1903140), (12, 1744545), (15, 1395636), (18, 1163030), (20, 1046727), (22, 951570), (30, 697818), (33, 634380), (36, 581515), (44, 475785), (45, 465212), (55, 380628), (60, 348909), (66, 317190), (90, 232606), (97, 215820), (99, 211460), (109, 192060), (110, 190314), (132, 158595), (165, 126876), (180, 116303), (194, 107910), (198, 105730), (218, 96030), (220, 95157), (291, 71940), (327, 64020), (330, 63438), (388, 53955), (396, 52865), (436, 48015), (485, 43164), (495, 42292), (545, 38412), (582, 35970), (654, 32010), (660, 31719), (873, 23980), (970, 21582), (981, 21340), (990, 21146), (1067, 19620), (1090, 19206), (1164, 17985), (1199, 17460), (1308, 16005), (1455, 14388), (1635, 12804), (1746, 11990), (1940, 10791), (1962, 10670), (1980, 10573), (2134, 9810), (2180, 9603), (2398, 8730), (2910, 7194), (3201, 6540), (3270, 6402), (3492, 5995), (3597, 5820), (3924, 5335), (4268, 4905), (4365, 4796)]