20748540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{5669}}^1$

素因数の和:5742

約数の個数: 48

約数和(自身を含む): 59058720

約数和(自身を除く): 38310180

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 61, 122, 183, 244, 305, 366, 610, 732, 915, 1220, 1830, 3660, 5669, 11338, 17007, 22676, 28345, 34014, 56690, 68028, 85035, 113380, 170070, 340140, 345809, 691618, 1037427, 1383236, 1729045, 2074854, 3458090, 4149708, 5187135, 6916180, 10374270, 20748540]

約数ペア:

[(1, 20748540), (2, 10374270), (3, 6916180), (4, 5187135), (5, 4149708), (6, 3458090), (10, 2074854), (12, 1729045), (15, 1383236), (20, 1037427), (30, 691618), (60, 345809), (61, 340140), (122, 170070), (183, 113380), (244, 85035), (305, 68028), (366, 56690), (610, 34014), (732, 28345), (915, 22676), (1220, 17007), (1830, 11338), (3660, 5669)]