290785215

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{145757}}^1$

素因数の和:145791

約数の個数: 32

約数和(自身を含む): 559710720

約数和(自身を除く): 268925505

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 57, 95, 105, 133, 285, 399, 665, 1995, 145757, 437271, 728785, 1020299, 2186355, 2769383, 3060897, 5101495, 8308149, 13846915, 15304485, 19385681, 41540745, 58157043, 96928405, 290785215]

約数ペア:

[(1, 290785215), (3, 96928405), (5, 58157043), (7, 41540745), (15, 19385681), (19, 15304485), (21, 13846915), (35, 8308149), (57, 5101495), (95, 3060897), (105, 2769383), (133, 2186355), (285, 1020299), (399, 728785), (665, 437271), (1995, 145757)]