261342003

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{103}}^1$

素因数の和:268

約数の個数: 64

約数和(自身を含む): 415134720

約数和(自身を除く): 153792717

約数列:

[1, 3, 13, 17, 39, 43, 51, 89, 103, 129, 221, 267, 309, 559, 663, 731, 1157, 1339, 1513, 1677, 1751, 2193, 3471, 3827, 4017, 4429, 4539, 5253, 9167, 9503, 11481, 13287, 19669, 22763, 27501, 28509, 49751, 57577, 59007, 65059, 68289, 75293, 119171, 149253, 155839, 172731, 195177, 225879, 357513, 394181, 467517, 845767, 978809, 1182543, 2025907, 2537301, 2936427, 5124353, 6077721, 6701077, 15373059, 20103231, 87114001, 261342003]

約数ペア:

[(1, 261342003), (3, 87114001), (13, 20103231), (17, 15373059), (39, 6701077), (43, 6077721), (51, 5124353), (89, 2936427), (103, 2537301), (129, 2025907), (221, 1182543), (267, 978809), (309, 845767), (559, 467517), (663, 394181), (731, 357513), (1157, 225879), (1339, 195177), (1513, 172731), (1677, 155839), (1751, 149253), (2193, 119171), (3471, 75293), (3827, 68289), (4017, 65059), (4429, 59007), (4539, 57577), (5253, 49751), (9167, 28509), (9503, 27501), (11481, 22763), (13287, 19669)]