78964520

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{85831}}^1$

素因数の和:85865

約数の個数: 32

約数和(自身を含む): 185397120

約数和(自身を除く): 106432600

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 85831, 171662, 343324, 429155, 686648, 858310, 1716620, 1974113, 3433240, 3948226, 7896452, 9870565, 15792904, 19741130, 39482260, 78964520]

約数ペア:

[(1, 78964520), (2, 39482260), (4, 19741130), (5, 15792904), (8, 9870565), (10, 7896452), (20, 3948226), (23, 3433240), (40, 1974113), (46, 1716620), (92, 858310), (115, 686648), (184, 429155), (230, 343324), (460, 171662), (920, 85831)]