19631660

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{127}}^1\times {\mathrm{131}}^1$

素因数の和:326

約数の個数: 48

約数和(自身を含む): 42577920

約数和(自身を除く): 22946260

約数列:

[1, 2, 4, 5, 10, 20, 59, 118, 127, 131, 236, 254, 262, 295, 508, 524, 590, 635, 655, 1180, 1270, 1310, 2540, 2620, 7493, 7729, 14986, 15458, 16637, 29972, 30916, 33274, 37465, 38645, 66548, 74930, 77290, 83185, 149860, 154580, 166370, 332740, 981583, 1963166, 3926332, 4907915, 9815830, 19631660]

約数ペア:

[(1, 19631660), (2, 9815830), (4, 4907915), (5, 3926332), (10, 1963166), (20, 981583), (59, 332740), (118, 166370), (127, 154580), (131, 149860), (236, 83185), (254, 77290), (262, 74930), (295, 66548), (508, 38645), (524, 37465), (590, 33274), (635, 30916), (655, 29972), (1180, 16637), (1270, 15458), (1310, 14986), (2540, 7729), (2620, 7493)]