66904760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{128663}}^1$

素因数の和:128687

約数の個数: 32

約数和(自身を含む): 162116640

約数和(自身を除く): 95211880

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 128663, 257326, 514652, 643315, 1029304, 1286630, 1672619, 2573260, 3345238, 5146520, 6690476, 8363095, 13380952, 16726190, 33452380, 66904760]

約数ペア:

[(1, 66904760), (2, 33452380), (4, 16726190), (5, 13380952), (8, 8363095), (10, 6690476), (13, 5146520), (20, 3345238), (26, 2573260), (40, 1672619), (52, 1286630), (65, 1029304), (104, 643315), (130, 514652), (260, 257326), (520, 128663)]