19486480

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{457}}^1$

素因数の和:524

約数の個数: 80

約数和(自身を含む): 50090544

約数和(自身を除く): 30604064

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 41, 52, 65, 80, 82, 104, 130, 164, 205, 208, 260, 328, 410, 457, 520, 533, 656, 820, 914, 1040, 1066, 1640, 1828, 2132, 2285, 2665, 3280, 3656, 4264, 4570, 5330, 5941, 7312, 8528, 9140, 10660, 11882, 18280, 18737, 21320, 23764, 29705, 36560, 37474, 42640, 47528, 59410, 74948, 93685, 95056, 118820, 149896, 187370, 237640, 243581, 299792, 374740, 475280, 487162, 749480, 974324, 1217905, 1498960, 1948648, 2435810, 3897296, 4871620, 9743240, 19486480]

約数ペア:

[(1, 19486480), (2, 9743240), (4, 4871620), (5, 3897296), (8, 2435810), (10, 1948648), (13, 1498960), (16, 1217905), (20, 974324), (26, 749480), (40, 487162), (41, 475280), (52, 374740), (65, 299792), (80, 243581), (82, 237640), (104, 187370), (130, 149896), (164, 118820), (205, 95056), (208, 93685), (260, 74948), (328, 59410), (410, 47528), (457, 42640), (520, 37474), (533, 36560), (656, 29705), (820, 23764), (914, 21320), (1040, 18737), (1066, 18280), (1640, 11882), (1828, 10660), (2132, 9140), (2285, 8528), (2665, 7312), (3280, 5941), (3656, 5330), (4264, 4570)]