78204255

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{419}}^1\times {\mathrm{541}}^1$

素因数の和:991

約数の個数: 32

約数和(自身を含む): 131120640

約数和(自身を除く): 52916385

約数列:

[1, 3, 5, 15, 23, 69, 115, 345, 419, 541, 1257, 1623, 2095, 2705, 6285, 8115, 9637, 12443, 28911, 37329, 48185, 62215, 144555, 186645, 226679, 680037, 1133395, 3400185, 5213617, 15640851, 26068085, 78204255]

約数ペア:

[(1, 78204255), (3, 26068085), (5, 15640851), (15, 5213617), (23, 3400185), (69, 1133395), (115, 680037), (345, 226679), (419, 186645), (541, 144555), (1257, 62215), (1623, 48185), (2095, 37329), (2705, 28911), (6285, 12443), (8115, 9637)]