20185932940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{398459}}^1$

素因数の和:398634

約数の個数: 48

約数和(自身を含む): 45185364000

約数和(自身を除く): 24999431060

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 149, 170, 298, 340, 596, 745, 1490, 2533, 2980, 5066, 10132, 12665, 25330, 50660, 398459, 796918, 1593836, 1992295, 3984590, 6773803, 7969180, 13547606, 27095212, 33869015, 59370391, 67738030, 118740782, 135476060, 237481564, 296851955, 593703910, 1009296647, 1187407820, 2018593294, 4037186588, 5046483235, 10092966470, 20185932940]

約数ペア:

[(1, 20185932940), (2, 10092966470), (4, 5046483235), (5, 4037186588), (10, 2018593294), (17, 1187407820), (20, 1009296647), (34, 593703910), (68, 296851955), (85, 237481564), (149, 135476060), (170, 118740782), (298, 67738030), (340, 59370391), (596, 33869015), (745, 27095212), (1490, 13547606), (2533, 7969180), (2980, 6773803), (5066, 3984590), (10132, 1992295), (12665, 1593836), (25330, 796918), (50660, 398459)]