64020040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{9941}}^1$

素因数の和:9982

約数の個数: 64

約数和(自身を含む): 171797760

約数和(自身を除く): 107777720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 92, 115, 140, 161, 184, 230, 280, 322, 460, 644, 805, 920, 1288, 1610, 3220, 6440, 9941, 19882, 39764, 49705, 69587, 79528, 99410, 139174, 198820, 228643, 278348, 347935, 397640, 457286, 556696, 695870, 914572, 1143215, 1391740, 1600501, 1829144, 2286430, 2783480, 3201002, 4572860, 6402004, 8002505, 9145720, 12804008, 16005010, 32010020, 64020040]

約数ペア:

[(1, 64020040), (2, 32010020), (4, 16005010), (5, 12804008), (7, 9145720), (8, 8002505), (10, 6402004), (14, 4572860), (20, 3201002), (23, 2783480), (28, 2286430), (35, 1829144), (40, 1600501), (46, 1391740), (56, 1143215), (70, 914572), (92, 695870), (115, 556696), (140, 457286), (161, 397640), (184, 347935), (230, 278348), (280, 228643), (322, 198820), (460, 139174), (644, 99410), (805, 79528), (920, 69587), (1288, 49705), (1610, 39764), (3220, 19882), (6440, 9941)]