19387340

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{73}}^1\times {\mathrm{271}}^1$

素因数の和:367

約数の個数: 72

約数和(自身を含む): 48186432

約数和(自身を除く): 28799092

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 73, 98, 140, 146, 196, 245, 271, 292, 365, 490, 511, 542, 730, 980, 1022, 1084, 1355, 1460, 1897, 2044, 2555, 2710, 3577, 3794, 5110, 5420, 7154, 7588, 9485, 10220, 13279, 14308, 17885, 18970, 19783, 26558, 35770, 37940, 39566, 53116, 66395, 71540, 79132, 98915, 132790, 138481, 197830, 265580, 276962, 395660, 553924, 692405, 969367, 1384810, 1938734, 2769620, 3877468, 4846835, 9693670, 19387340]

約数ペア:

[(1, 19387340), (2, 9693670), (4, 4846835), (5, 3877468), (7, 2769620), (10, 1938734), (14, 1384810), (20, 969367), (28, 692405), (35, 553924), (49, 395660), (70, 276962), (73, 265580), (98, 197830), (140, 138481), (146, 132790), (196, 98915), (245, 79132), (271, 71540), (292, 66395), (365, 53116), (490, 39566), (511, 37940), (542, 35770), (730, 26558), (980, 19783), (1022, 18970), (1084, 17885), (1355, 14308), (1460, 13279), (1897, 10220), (2044, 9485), (2555, 7588), (2710, 7154), (3577, 5420), (3794, 5110)]