20347873975

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{72047}}^1$

素因数の和:72160

約数の個数: 48

約数和(自身を含む): 30018078720

約数和(自身を除く): 9670204745

約数列:

[1, 5, 11, 13, 25, 55, 65, 79, 143, 275, 325, 395, 715, 869, 1027, 1975, 3575, 4345, 5135, 11297, 21725, 25675, 56485, 72047, 282425, 360235, 792517, 936611, 1801175, 3962585, 4683055, 5691713, 10302721, 19812925, 23415275, 28458565, 51513605, 62608843, 73992269, 142292825, 257568025, 313044215, 369961345, 813914959, 1565221075, 1849806725, 4069574795, 20347873975]

約数ペア:

[(1, 20347873975), (5, 4069574795), (11, 1849806725), (13, 1565221075), (25, 813914959), (55, 369961345), (65, 313044215), (79, 257568025), (143, 142292825), (275, 73992269), (325, 62608843), (395, 51513605), (715, 28458565), (869, 23415275), (1027, 19812925), (1975, 10302721), (3575, 5691713), (4345, 4683055), (5135, 3962585), (11297, 1801175), (21725, 936611), (25675, 792517), (56485, 360235), (72047, 282425)]