261859065

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{331}}^1\times {\mathrm{4057}}^1$

素因数の和:4409

約数の個数: 32

約数和(自身を含む): 452678016

約数和(自身を除く): 190818951

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 331, 993, 1655, 4057, 4303, 4965, 12171, 12909, 20285, 21515, 52741, 60855, 64545, 158223, 263705, 791115, 1342867, 4028601, 6714335, 17457271, 20143005, 52371813, 87286355, 261859065]

約数ペア:

[(1, 261859065), (3, 87286355), (5, 52371813), (13, 20143005), (15, 17457271), (39, 6714335), (65, 4028601), (195, 1342867), (331, 791115), (993, 263705), (1655, 158223), (4057, 64545), (4303, 60855), (4965, 52741), (12171, 21515), (12909, 20285)]