393807760

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{114479}}^1$

素因数の和:114535

約数の個数: 40

約数和(自身を含む): 936904320

約数和(自身を除く): 543096560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 114479, 228958, 457916, 572395, 915832, 1144790, 1831664, 2289580, 4579160, 4922597, 9158320, 9845194, 19690388, 24612985, 39380776, 49225970, 78761552, 98451940, 196903880, 393807760]

約数ペア:

[(1, 393807760), (2, 196903880), (4, 98451940), (5, 78761552), (8, 49225970), (10, 39380776), (16, 24612985), (20, 19690388), (40, 9845194), (43, 9158320), (80, 4922597), (86, 4579160), (172, 2289580), (215, 1831664), (344, 1144790), (430, 915832), (688, 572395), (860, 457916), (1720, 228958), (3440, 114479)]