261884415

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{13297}}^1$

素因数の和:13419

約数の個数: 32

約数和(自身を含む): 455749056

約数和(自身を除く): 193864641

約数列:

[1, 3, 5, 13, 15, 39, 65, 101, 195, 303, 505, 1313, 1515, 3939, 6565, 13297, 19695, 39891, 66485, 172861, 199455, 518583, 864305, 1342997, 2592915, 4028991, 6714985, 17458961, 20144955, 52376883, 87294805, 261884415]

約数ペア:

[(1, 261884415), (3, 87294805), (5, 52376883), (13, 20144955), (15, 17458961), (39, 6714985), (65, 4028991), (101, 2592915), (195, 1342997), (303, 864305), (505, 518583), (1313, 199455), (1515, 172861), (3939, 66485), (6565, 39891), (13297, 19695)]