16909480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{461}}^1$

素因数の和:610

約数の個数: 64

約数和(自身を含む): 43908480

約数和(自身を除く): 26999000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 131, 140, 262, 280, 461, 524, 655, 917, 922, 1048, 1310, 1834, 1844, 2305, 2620, 3227, 3668, 3688, 4585, 4610, 5240, 6454, 7336, 9170, 9220, 12908, 16135, 18340, 18440, 25816, 32270, 36680, 60391, 64540, 120782, 129080, 241564, 301955, 422737, 483128, 603910, 845474, 1207820, 1690948, 2113685, 2415640, 3381896, 4227370, 8454740, 16909480]

約数ペア:

[(1, 16909480), (2, 8454740), (4, 4227370), (5, 3381896), (7, 2415640), (8, 2113685), (10, 1690948), (14, 1207820), (20, 845474), (28, 603910), (35, 483128), (40, 422737), (56, 301955), (70, 241564), (131, 129080), (140, 120782), (262, 64540), (280, 60391), (461, 36680), (524, 32270), (655, 25816), (917, 18440), (922, 18340), (1048, 16135), (1310, 12908), (1834, 9220), (1844, 9170), (2305, 7336), (2620, 6454), (3227, 5240), (3668, 4610), (3688, 4585)]