4057720

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1663}}^1$

素因数の和:1735

約数の個数: 32

約数和(自身を含む): 9285120

約数和(自身を除く): 5227400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 1663, 2440, 3326, 6652, 8315, 13304, 16630, 33260, 66520, 101443, 202886, 405772, 507215, 811544, 1014430, 2028860, 4057720]

約数ペア:

[(1, 4057720), (2, 2028860), (4, 1014430), (5, 811544), (8, 507215), (10, 405772), (20, 202886), (40, 101443), (61, 66520), (122, 33260), (244, 16630), (305, 13304), (488, 8315), (610, 6652), (1220, 3326), (1663, 2440)]