7963540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{281}}^1$

素因数の和:412

約数の個数: 48

約数和(自身を含む): 18239760

約数和(自身を除く): 10276220

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 109, 130, 218, 260, 281, 436, 545, 562, 1090, 1124, 1405, 1417, 2180, 2810, 2834, 3653, 5620, 5668, 7085, 7306, 14170, 14612, 18265, 28340, 30629, 36530, 61258, 73060, 122516, 153145, 306290, 398177, 612580, 796354, 1592708, 1990885, 3981770, 7963540]

約数ペア:

[(1, 7963540), (2, 3981770), (4, 1990885), (5, 1592708), (10, 796354), (13, 612580), (20, 398177), (26, 306290), (52, 153145), (65, 122516), (109, 73060), (130, 61258), (218, 36530), (260, 30629), (281, 28340), (436, 18265), (545, 14612), (562, 14170), (1090, 7306), (1124, 7085), (1405, 5668), (1417, 5620), (2180, 3653), (2810, 2834)]