4895020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{281}}^1$

素因数の和:370

約数の個数: 48

約数和(自身を含む): 11275488

約数和(自身を除く): 6380468

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 67, 130, 134, 260, 268, 281, 335, 562, 670, 871, 1124, 1340, 1405, 1742, 2810, 3484, 3653, 4355, 5620, 7306, 8710, 14612, 17420, 18265, 18827, 36530, 37654, 73060, 75308, 94135, 188270, 244751, 376540, 489502, 979004, 1223755, 2447510, 4895020]

約数ペア:

[(1, 4895020), (2, 2447510), (4, 1223755), (5, 979004), (10, 489502), (13, 376540), (20, 244751), (26, 188270), (52, 94135), (65, 75308), (67, 73060), (130, 37654), (134, 36530), (260, 18827), (268, 18265), (281, 17420), (335, 14612), (562, 8710), (670, 7306), (871, 5620), (1124, 4355), (1340, 3653), (1405, 3484), (1742, 2810)]