19888920

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{547}}^1$

素因数の和:665

約数の個数: 96

約数和(自身を含む): 65398320

約数和(自身を除く): 45509400

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 101, 120, 180, 202, 303, 360, 404, 505, 547, 606, 808, 909, 1010, 1094, 1212, 1515, 1641, 1818, 2020, 2188, 2424, 2735, 3030, 3282, 3636, 4040, 4376, 4545, 4923, 5470, 6060, 6564, 7272, 8205, 9090, 9846, 10940, 12120, 13128, 16410, 18180, 19692, 21880, 24615, 32820, 36360, 39384, 49230, 55247, 65640, 98460, 110494, 165741, 196920, 220988, 276235, 331482, 441976, 497223, 552470, 662964, 828705, 994446, 1104940, 1325928, 1657410, 1988892, 2209880, 2486115, 3314820, 3977784, 4972230, 6629640, 9944460, 19888920]

約数ペア:

[(1, 19888920), (2, 9944460), (3, 6629640), (4, 4972230), (5, 3977784), (6, 3314820), (8, 2486115), (9, 2209880), (10, 1988892), (12, 1657410), (15, 1325928), (18, 1104940), (20, 994446), (24, 828705), (30, 662964), (36, 552470), (40, 497223), (45, 441976), (60, 331482), (72, 276235), (90, 220988), (101, 196920), (120, 165741), (180, 110494), (202, 98460), (303, 65640), (360, 55247), (404, 49230), (505, 39384), (547, 36360), (606, 32820), (808, 24615), (909, 21880), (1010, 19692), (1094, 18180), (1212, 16410), (1515, 13128), (1641, 12120), (1818, 10940), (2020, 9846), (2188, 9090), (2424, 8205), (2735, 7272), (3030, 6564), (3282, 6060), (3636, 5470), (4040, 4923), (4376, 4545)]