20180920375

素因数分解:

$5^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{443}}^1\times {\mathrm{4733}}^1$

素因数の和:5209

約数の個数: 64

約数和(自身を含む): 31477994496

約数和(自身を除く): 11297074121

約数列:

[1, 5, 7, 11, 25, 35, 55, 77, 125, 175, 275, 385, 443, 875, 1375, 1925, 2215, 3101, 4733, 4873, 9625, 11075, 15505, 23665, 24365, 33131, 34111, 52063, 55375, 77525, 118325, 121825, 165655, 170555, 260315, 364441, 387625, 591625, 609125, 828275, 852775, 1301575, 1822205, 2096719, 4141375, 4263875, 6507875, 9111025, 10483595, 14677033, 23063909, 45555125, 52417975, 73385165, 115319545, 161447363, 262089875, 366925825, 576597725, 807236815, 1834629125, 2882988625, 4036184075, 20180920375]

約数ペア:

[(1, 20180920375), (5, 4036184075), (7, 2882988625), (11, 1834629125), (25, 807236815), (35, 576597725), (55, 366925825), (77, 262089875), (125, 161447363), (175, 115319545), (275, 73385165), (385, 52417975), (443, 45555125), (875, 23063909), (1375, 14677033), (1925, 10483595), (2215, 9111025), (3101, 6507875), (4733, 4263875), (4873, 4141375), (9625, 2096719), (11075, 1822205), (15505, 1301575), (23665, 852775), (24365, 828275), (33131, 609125), (34111, 591625), (52063, 387625), (55375, 364441), (77525, 260315), (118325, 170555), (121825, 165655)]