38355440

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{5387}}^1$

素因数の和:5489

約数の個数: 40

約数和(自身を含む): 90195120

約数和(自身を除く): 51839680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 3560, 5387, 7120, 10774, 21548, 26935, 43096, 53870, 86192, 107740, 215480, 430960, 479443, 958886, 1917772, 2397215, 3835544, 4794430, 7671088, 9588860, 19177720, 38355440]

約数ペア:

[(1, 38355440), (2, 19177720), (4, 9588860), (5, 7671088), (8, 4794430), (10, 3835544), (16, 2397215), (20, 1917772), (40, 958886), (80, 479443), (89, 430960), (178, 215480), (356, 107740), (445, 86192), (712, 53870), (890, 43096), (1424, 26935), (1780, 21548), (3560, 10774), (5387, 7120)]