19172720

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{67}}^1\times {\mathrm{73}}^1$

素因数の和:167

約数の個数: 120

約数和(自身を含む): 53349264

約数和(自身を除く): 34176544

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 67, 70, 73, 80, 98, 112, 134, 140, 146, 196, 245, 268, 280, 292, 335, 365, 392, 469, 490, 511, 536, 560, 584, 670, 730, 784, 938, 980, 1022, 1072, 1168, 1340, 1460, 1876, 1960, 2044, 2345, 2555, 2680, 2920, 3283, 3577, 3752, 3920, 4088, 4690, 4891, 5110, 5360, 5840, 6566, 7154, 7504, 8176, 9380, 9782, 10220, 13132, 14308, 16415, 17885, 18760, 19564, 20440, 24455, 26264, 28616, 32830, 34237, 35770, 37520, 39128, 40880, 48910, 52528, 57232, 65660, 68474, 71540, 78256, 97820, 131320, 136948, 143080, 171185, 195640, 239659, 262640, 273896, 286160, 342370, 391280, 479318, 547792, 684740, 958636, 1198295, 1369480, 1917272, 2396590, 2738960, 3834544, 4793180, 9586360, 19172720]

約数ペア:

[(1, 19172720), (2, 9586360), (4, 4793180), (5, 3834544), (7, 2738960), (8, 2396590), (10, 1917272), (14, 1369480), (16, 1198295), (20, 958636), (28, 684740), (35, 547792), (40, 479318), (49, 391280), (56, 342370), (67, 286160), (70, 273896), (73, 262640), (80, 239659), (98, 195640), (112, 171185), (134, 143080), (140, 136948), (146, 131320), (196, 97820), (245, 78256), (268, 71540), (280, 68474), (292, 65660), (335, 57232), (365, 52528), (392, 48910), (469, 40880), (490, 39128), (511, 37520), (536, 35770), (560, 34237), (584, 32830), (670, 28616), (730, 26264), (784, 24455), (938, 20440), (980, 19564), (1022, 18760), (1072, 17885), (1168, 16415), (1340, 14308), (1460, 13132), (1876, 10220), (1960, 9782), (2044, 9380), (2345, 8176), (2555, 7504), (2680, 7154), (2920, 6566), (3283, 5840), (3577, 5360), (3752, 5110), (3920, 4891), (4088, 4690)]