664430975

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{241}}^1\times {\mathrm{499}}^1$

素因数の和:780

約数の個数: 48

約数和(自身を含む): 945252000

約数和(自身を除く): 280821025

約数列:

[1, 5, 13, 17, 25, 65, 85, 221, 241, 325, 425, 499, 1105, 1205, 2495, 3133, 4097, 5525, 6025, 6487, 8483, 12475, 15665, 20485, 32435, 42415, 53261, 78325, 102425, 110279, 120259, 162175, 212075, 266305, 551395, 601295, 1331525, 1563367, 2044403, 2756975, 3006475, 7816835, 10222015, 26577239, 39084175, 51110075, 132886195, 664430975]

約数ペア:

[(1, 664430975), (5, 132886195), (13, 51110075), (17, 39084175), (25, 26577239), (65, 10222015), (85, 7816835), (221, 3006475), (241, 2756975), (325, 2044403), (425, 1563367), (499, 1331525), (1105, 601295), (1205, 551395), (2495, 266305), (3133, 212075), (4097, 162175), (5525, 120259), (6025, 110279), (6487, 102425), (8483, 78325), (12475, 53261), (15665, 42415), (20485, 32435)]