71377840

素因数分解:

$2^4\times 5^1\times {\mathrm{223}}^1\times {\mathrm{4001}}^1$

素因数の和:4237

約数の個数: 40

約数和(自身を含む): 166739328

約数和(自身を除く): 95361488

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 223, 446, 892, 1115, 1784, 2230, 3568, 4001, 4460, 8002, 8920, 16004, 17840, 20005, 32008, 40010, 64016, 80020, 160040, 320080, 892223, 1784446, 3568892, 4461115, 7137784, 8922230, 14275568, 17844460, 35688920, 71377840]

約数ペア:

[(1, 71377840), (2, 35688920), (4, 17844460), (5, 14275568), (8, 8922230), (10, 7137784), (16, 4461115), (20, 3568892), (40, 1784446), (80, 892223), (223, 320080), (446, 160040), (892, 80020), (1115, 64016), (1784, 40010), (2230, 32008), (3568, 20005), (4001, 17840), (4460, 16004), (8002, 8920)]