28158320

素因数分解:

$2^4\times 5^1\times {\mathrm{523}}^1\times {\mathrm{673}}^1$

素因数の和:1209

約数の個数: 40

約数和(自身を含む): 65690736

約数和(自身を除く): 37532416

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 523, 673, 1046, 1346, 2092, 2615, 2692, 3365, 4184, 5230, 5384, 6730, 8368, 10460, 10768, 13460, 20920, 26920, 41840, 53840, 351979, 703958, 1407916, 1759895, 2815832, 3519790, 5631664, 7039580, 14079160, 28158320]

約数ペア:

[(1, 28158320), (2, 14079160), (4, 7039580), (5, 5631664), (8, 3519790), (10, 2815832), (16, 1759895), (20, 1407916), (40, 703958), (80, 351979), (523, 53840), (673, 41840), (1046, 26920), (1346, 20920), (2092, 13460), (2615, 10768), (2692, 10460), (3365, 8368), (4184, 6730), (5230, 5384)]