16993980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{4969}}^1$

素因数の和:5003

約数の個数: 72

約数和(自身を含む): 54272400

約数和(自身を除く): 37278420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 4969, 9938, 14907, 19876, 24845, 29814, 44721, 49690, 59628, 74535, 89442, 94411, 99380, 149070, 178884, 188822, 223605, 283233, 298140, 377644, 447210, 472055, 566466, 849699, 894420, 944110, 1132932, 1416165, 1699398, 1888220, 2832330, 3398796, 4248495, 5664660, 8496990, 16993980]

約数ペア:

[(1, 16993980), (2, 8496990), (3, 5664660), (4, 4248495), (5, 3398796), (6, 2832330), (9, 1888220), (10, 1699398), (12, 1416165), (15, 1132932), (18, 944110), (19, 894420), (20, 849699), (30, 566466), (36, 472055), (38, 447210), (45, 377644), (57, 298140), (60, 283233), (76, 223605), (90, 188822), (95, 178884), (114, 149070), (171, 99380), (180, 94411), (190, 89442), (228, 74535), (285, 59628), (342, 49690), (380, 44721), (570, 29814), (684, 24845), (855, 19876), (1140, 14907), (1710, 9938), (3420, 4969)]