21031874520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{367}}^1\times {\mathrm{479}}^1\times {\mathrm{997}}^1$

素因数の和:1857

約数の個数: 128

約数和(自身を含む): 63463219200

約数和(自身を除く): 42431344680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 367, 479, 734, 958, 997, 1101, 1437, 1468, 1835, 1916, 1994, 2202, 2395, 2874, 2936, 2991, 3670, 3832, 3988, 4404, 4790, 4985, 5505, 5748, 5982, 7185, 7340, 7976, 8808, 9580, 9970, 11010, 11496, 11964, 14370, 14680, 14955, 19160, 19940, 22020, 23928, 28740, 29910, 39880, 44040, 57480, 59820, 119640, 175793, 351586, 365899, 477563, 527379, 703172, 731798, 878965, 955126, 1054758, 1097697, 1406344, 1432689, 1463596, 1757930, 1829495, 1910252, 2109516, 2195394, 2387815, 2636895, 2865378, 2927192, 3515860, 3658990, 3820504, 4219032, 4390788, 4775630, 5273790, 5488485, 5730756, 7031720, 7163445, 7317980, 8781576, 9551260, 10547580, 10976970, 11461512, 14326890, 14635960, 19102520, 21095160, 21953940, 28653780, 43907880, 57307560, 175265621, 350531242, 525796863, 701062484, 876328105, 1051593726, 1402124968, 1752656210, 2103187452, 2628984315, 3505312420, 4206374904, 5257968630, 7010624840, 10515937260, 21031874520]

約数ペア:

[(1, 21031874520), (2, 10515937260), (3, 7010624840), (4, 5257968630), (5, 4206374904), (6, 3505312420), (8, 2628984315), (10, 2103187452), (12, 1752656210), (15, 1402124968), (20, 1051593726), (24, 876328105), (30, 701062484), (40, 525796863), (60, 350531242), (120, 175265621), (367, 57307560), (479, 43907880), (734, 28653780), (958, 21953940), (997, 21095160), (1101, 19102520), (1437, 14635960), (1468, 14326890), (1835, 11461512), (1916, 10976970), (1994, 10547580), (2202, 9551260), (2395, 8781576), (2874, 7317980), (2936, 7163445), (2991, 7031720), (3670, 5730756), (3832, 5488485), (3988, 5273790), (4404, 4775630), (4790, 4390788), (4985, 4219032), (5505, 3820504), (5748, 3658990), (5982, 3515860), (7185, 2927192), (7340, 2865378), (7976, 2636895), (8808, 2387815), (9580, 2195394), (9970, 2109516), (11010, 1910252), (11496, 1829495), (11964, 1757930), (14370, 1463596), (14680, 1432689), (14955, 1406344), (19160, 1097697), (19940, 1054758), (22020, 955126), (23928, 878965), (28740, 731798), (29910, 703172), (39880, 527379), (44040, 477563), (57480, 365899), (59820, 351586), (119640, 175793)]