28347020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{3517}}^1$

素因数の和:3570

約数の個数: 48

約数和(自身を含む): 66194688

約数和(自身を除く): 37847668

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 1612, 2015, 3517, 4030, 7034, 8060, 14068, 17585, 35170, 45721, 70340, 91442, 109027, 182884, 218054, 228605, 436108, 457210, 545135, 914420, 1090270, 1417351, 2180540, 2834702, 5669404, 7086755, 14173510, 28347020]

約数ペア:

[(1, 28347020), (2, 14173510), (4, 7086755), (5, 5669404), (10, 2834702), (13, 2180540), (20, 1417351), (26, 1090270), (31, 914420), (52, 545135), (62, 457210), (65, 436108), (124, 228605), (130, 218054), (155, 182884), (260, 109027), (310, 91442), (403, 70340), (620, 45721), (806, 35170), (1612, 17585), (2015, 14068), (3517, 8060), (4030, 7034)]