261007005

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1\times {\mathrm{223}}^1$

素因数の和:466

約数の個数: 64

約数和(自身を含む): 489259008

約数和(自身を除く): 228252003

約数列:

[1, 3, 5, 7, 15, 21, 35, 71, 105, 157, 213, 223, 355, 471, 497, 669, 785, 1065, 1099, 1115, 1491, 1561, 2355, 2485, 3297, 3345, 4683, 5495, 7455, 7805, 11147, 15833, 16485, 23415, 33441, 35011, 47499, 55735, 78029, 79165, 105033, 110831, 167205, 175055, 234087, 237495, 245077, 332493, 390145, 525165, 554155, 735231, 1170435, 1225385, 1662465, 2485781, 3676155, 7457343, 12428905, 17400467, 37286715, 52201401, 87002335, 261007005]

約数ペア:

[(1, 261007005), (3, 87002335), (5, 52201401), (7, 37286715), (15, 17400467), (21, 12428905), (35, 7457343), (71, 3676155), (105, 2485781), (157, 1662465), (213, 1225385), (223, 1170435), (355, 735231), (471, 554155), (497, 525165), (669, 390145), (785, 332493), (1065, 245077), (1099, 237495), (1115, 234087), (1491, 175055), (1561, 167205), (2355, 110831), (2485, 105033), (3297, 79165), (3345, 78029), (4683, 55735), (5495, 47499), (7455, 35011), (7805, 33441), (11147, 23415), (15833, 16485)]