20290395

素因数分解:

$3^1\times 5^1\times {\mathrm{59}}^1\times {\mathrm{101}}^1\times {\mathrm{227}}^1$

素因数の和:395

約数の個数: 32

約数和(自身を含む): 33488640

約数和(自身を除く): 13198245

約数列:

[1, 3, 5, 15, 59, 101, 177, 227, 295, 303, 505, 681, 885, 1135, 1515, 3405, 5959, 13393, 17877, 22927, 29795, 40179, 66965, 68781, 89385, 114635, 200895, 343905, 1352693, 4058079, 6763465, 20290395]

約数ペア:

[(1, 20290395), (3, 6763465), (5, 4058079), (15, 1352693), (59, 343905), (101, 200895), (177, 114635), (227, 89385), (295, 68781), (303, 66965), (505, 40179), (681, 29795), (885, 22927), (1135, 17877), (1515, 13393), (3405, 5959)]