12708020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1321}}^1$

素因数の和:1380

約数の個数: 48

約数和(自身を含む): 29538768

約数和(自身を除く): 16830748

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 37, 52, 65, 74, 130, 148, 185, 260, 370, 481, 740, 962, 1321, 1924, 2405, 2642, 4810, 5284, 6605, 9620, 13210, 17173, 26420, 34346, 48877, 68692, 85865, 97754, 171730, 195508, 244385, 343460, 488770, 635401, 977540, 1270802, 2541604, 3177005, 6354010, 12708020]

約数ペア:

[(1, 12708020), (2, 6354010), (4, 3177005), (5, 2541604), (10, 1270802), (13, 977540), (20, 635401), (26, 488770), (37, 343460), (52, 244385), (65, 195508), (74, 171730), (130, 97754), (148, 85865), (185, 68692), (260, 48877), (370, 34346), (481, 26420), (740, 17173), (962, 13210), (1321, 9620), (1924, 6605), (2405, 5284), (2642, 4810)]