21649062620

素因数分解:

$2^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{131}}^1\times {\mathrm{65063}}^1$

素因数の和:65330

約数の個数: 48

約数和(自身を含む): 46171496448

約数和(自身を除く): 24522433828

約数列:

[1, 2, 4, 5, 10, 20, 127, 131, 254, 262, 508, 524, 635, 655, 1270, 1310, 2540, 2620, 16637, 33274, 65063, 66548, 83185, 130126, 166370, 260252, 325315, 332740, 650630, 1301260, 8263001, 8523253, 16526002, 17046506, 33052004, 34093012, 41315005, 42616265, 82630010, 85232530, 165260020, 170465060, 1082453131, 2164906262, 4329812524, 5412265655, 10824531310, 21649062620]

約数ペア:

[(1, 21649062620), (2, 10824531310), (4, 5412265655), (5, 4329812524), (10, 2164906262), (20, 1082453131), (127, 170465060), (131, 165260020), (254, 85232530), (262, 82630010), (508, 42616265), (524, 41315005), (635, 34093012), (655, 33052004), (1270, 17046506), (1310, 16526002), (2540, 8523253), (2620, 8263001), (16637, 1301260), (33274, 650630), (65063, 332740), (66548, 325315), (83185, 260252), (130126, 166370)]