19992720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{7573}}^1$

素因数の和:7600

約数の個数: 80

約数和(自身を含む): 67620672

約数和(自身を除く): 47627952

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 33, 40, 44, 48, 55, 60, 66, 80, 88, 110, 120, 132, 165, 176, 220, 240, 264, 330, 440, 528, 660, 880, 1320, 2640, 7573, 15146, 22719, 30292, 37865, 45438, 60584, 75730, 83303, 90876, 113595, 121168, 151460, 166606, 181752, 227190, 249909, 302920, 333212, 363504, 416515, 454380, 499818, 605840, 666424, 833030, 908760, 999636, 1249545, 1332848, 1666060, 1817520, 1999272, 2499090, 3332120, 3998544, 4998180, 6664240, 9996360, 19992720]

約数ペア:

[(1, 19992720), (2, 9996360), (3, 6664240), (4, 4998180), (5, 3998544), (6, 3332120), (8, 2499090), (10, 1999272), (11, 1817520), (12, 1666060), (15, 1332848), (16, 1249545), (20, 999636), (22, 908760), (24, 833030), (30, 666424), (33, 605840), (40, 499818), (44, 454380), (48, 416515), (55, 363504), (60, 333212), (66, 302920), (80, 249909), (88, 227190), (110, 181752), (120, 166606), (132, 151460), (165, 121168), (176, 113595), (220, 90876), (240, 83303), (264, 75730), (330, 60584), (440, 45438), (528, 37865), (660, 30292), (880, 22719), (1320, 15146), (2640, 7573)]