259408905

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1\times {\mathrm{401}}^1$

素因数の和:578

約数の個数: 64

約数和(自身を含む): 488111616

約数和(自身を除く): 228702711

約数列:

[1, 3, 5, 7, 15, 21, 35, 61, 101, 105, 183, 303, 305, 401, 427, 505, 707, 915, 1203, 1281, 1515, 2005, 2121, 2135, 2807, 3535, 6015, 6161, 6405, 8421, 10605, 14035, 18483, 24461, 30805, 40501, 42105, 43127, 73383, 92415, 121503, 122305, 129381, 171227, 202505, 215635, 283507, 366915, 513681, 607515, 646905, 850521, 856135, 1417535, 2470561, 2568405, 4252605, 7411683, 12352805, 17293927, 37058415, 51881781, 86469635, 259408905]

約数ペア:

[(1, 259408905), (3, 86469635), (5, 51881781), (7, 37058415), (15, 17293927), (21, 12352805), (35, 7411683), (61, 4252605), (101, 2568405), (105, 2470561), (183, 1417535), (303, 856135), (305, 850521), (401, 646905), (427, 607515), (505, 513681), (707, 366915), (915, 283507), (1203, 215635), (1281, 202505), (1515, 171227), (2005, 129381), (2121, 122305), (2135, 121503), (2807, 92415), (3535, 73383), (6015, 43127), (6161, 42105), (6405, 40501), (8421, 30805), (10605, 24461), (14035, 18483)]