129770720

素因数分解:

$2^5\times 5^1\times {\mathrm{811067}}^1$

素因数の和:811082

約数の個数: 24

約数和(自身を含む): 306583704

約数和(自身を除く): 176812984

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 811067, 1622134, 3244268, 4055335, 6488536, 8110670, 12977072, 16221340, 25954144, 32442680, 64885360, 129770720]

約数ペア:

[(1, 129770720), (2, 64885360), (4, 32442680), (5, 25954144), (8, 16221340), (10, 12977072), (16, 8110670), (20, 6488536), (32, 4055335), (40, 3244268), (80, 1622134), (160, 811067)]