16668820

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{73}}^1\times {\mathrm{233}}^1$

素因数の和:329

約数の個数: 72

約数和(自身を含む): 41454504

約数和(自身を除く): 24785684

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 73, 98, 140, 146, 196, 233, 245, 292, 365, 466, 490, 511, 730, 932, 980, 1022, 1165, 1460, 1631, 2044, 2330, 2555, 3262, 3577, 4660, 5110, 6524, 7154, 8155, 10220, 11417, 14308, 16310, 17009, 17885, 22834, 32620, 34018, 35770, 45668, 57085, 68036, 71540, 85045, 114170, 119063, 170090, 228340, 238126, 340180, 476252, 595315, 833441, 1190630, 1666882, 2381260, 3333764, 4167205, 8334410, 16668820]

約数ペア:

[(1, 16668820), (2, 8334410), (4, 4167205), (5, 3333764), (7, 2381260), (10, 1666882), (14, 1190630), (20, 833441), (28, 595315), (35, 476252), (49, 340180), (70, 238126), (73, 228340), (98, 170090), (140, 119063), (146, 114170), (196, 85045), (233, 71540), (245, 68036), (292, 57085), (365, 45668), (466, 35770), (490, 34018), (511, 32620), (730, 22834), (932, 17885), (980, 17009), (1022, 16310), (1165, 14308), (1460, 11417), (1631, 10220), (2044, 8155), (2330, 7154), (2555, 6524), (3262, 5110), (3577, 4660)]