4989020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{691}}^1$

素因数の和:738

約数の個数: 36

約数和(自身を含む): 11073384

約数和(自身を除く): 6084364

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 361, 380, 691, 722, 1382, 1444, 1805, 2764, 3455, 3610, 6910, 7220, 13129, 13820, 26258, 52516, 65645, 131290, 249451, 262580, 498902, 997804, 1247255, 2494510, 4989020]

約数ペア:

[(1, 4989020), (2, 2494510), (4, 1247255), (5, 997804), (10, 498902), (19, 262580), (20, 249451), (38, 131290), (76, 65645), (95, 52516), (190, 26258), (361, 13820), (380, 13129), (691, 7220), (722, 6910), (1382, 3610), (1444, 3455), (1805, 2764)]