10840280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{347}}^1$

素因数の和:440

約数の個数: 64

約数和(自身を含む): 27060480

約数和(自身を除く): 16220200

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 71, 88, 110, 142, 220, 284, 347, 355, 440, 568, 694, 710, 781, 1388, 1420, 1562, 1735, 2776, 2840, 3124, 3470, 3817, 3905, 6248, 6940, 7634, 7810, 13880, 15268, 15620, 19085, 24637, 30536, 31240, 38170, 49274, 76340, 98548, 123185, 152680, 197096, 246370, 271007, 492740, 542014, 985480, 1084028, 1355035, 2168056, 2710070, 5420140, 10840280]

約数ペア:

[(1, 10840280), (2, 5420140), (4, 2710070), (5, 2168056), (8, 1355035), (10, 1084028), (11, 985480), (20, 542014), (22, 492740), (40, 271007), (44, 246370), (55, 197096), (71, 152680), (88, 123185), (110, 98548), (142, 76340), (220, 49274), (284, 38170), (347, 31240), (355, 30536), (440, 24637), (568, 19085), (694, 15620), (710, 15268), (781, 13880), (1388, 7810), (1420, 7634), (1562, 6940), (1735, 6248), (2776, 3905), (2840, 3817), (3124, 3470)]