129817680

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{540907}}^1$

素因数の和:540923

約数の個数: 40

約数和(自身を含む): 402435552

約数和(自身を除く): 272617872

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 540907, 1081814, 1622721, 2163628, 2704535, 3245442, 4327256, 5409070, 6490884, 8113605, 8654512, 10818140, 12981768, 16227210, 21636280, 25963536, 32454420, 43272560, 64908840, 129817680]

約数ペア:

[(1, 129817680), (2, 64908840), (3, 43272560), (4, 32454420), (5, 25963536), (6, 21636280), (8, 16227210), (10, 12981768), (12, 10818140), (15, 8654512), (16, 8113605), (20, 6490884), (24, 5409070), (30, 4327256), (40, 3245442), (48, 2704535), (60, 2163628), (80, 1622721), (120, 1081814), (240, 540907)]