28390240

素因数分解:

$2^5\times 5^1\times {\mathrm{191}}^1\times {\mathrm{929}}^1$

素因数の和:1135

約数の個数: 48

約数和(自身を含む): 67495680

約数和(自身を除く): 39105440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 191, 382, 764, 929, 955, 1528, 1858, 1910, 3056, 3716, 3820, 4645, 6112, 7432, 7640, 9290, 14864, 15280, 18580, 29728, 30560, 37160, 74320, 148640, 177439, 354878, 709756, 887195, 1419512, 1774390, 2839024, 3548780, 5678048, 7097560, 14195120, 28390240]

約数ペア:

[(1, 28390240), (2, 14195120), (4, 7097560), (5, 5678048), (8, 3548780), (10, 2839024), (16, 1774390), (20, 1419512), (32, 887195), (40, 709756), (80, 354878), (160, 177439), (191, 148640), (382, 74320), (764, 37160), (929, 30560), (955, 29728), (1528, 18580), (1858, 15280), (1910, 14864), (3056, 9290), (3716, 7640), (3820, 7432), (4645, 6112)]