1989975

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^2\times {\mathrm{157}}^1$

素因数の和:196

約数の個数: 36

約数和(自身を含む): 3585336

約数和(自身を除く): 1595361

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 157, 169, 195, 325, 471, 507, 785, 845, 975, 2041, 2355, 2535, 3925, 4225, 6123, 10205, 11775, 12675, 26533, 30615, 51025, 79599, 132665, 153075, 397995, 663325, 1989975]

約数ペア:

[(1, 1989975), (3, 663325), (5, 397995), (13, 153075), (15, 132665), (25, 79599), (39, 51025), (65, 30615), (75, 26533), (157, 12675), (169, 11775), (195, 10205), (325, 6123), (471, 4225), (507, 3925), (785, 2535), (845, 2355), (975, 2041)]