268676840

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{395113}}^1$

素因数の和:395141

約数の個数: 32

約数和(自身を含む): 640084680

約数和(自身を除く): 371407840

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 395113, 790226, 1580452, 1975565, 3160904, 3951130, 6716921, 7902260, 13433842, 15804520, 26867684, 33584605, 53735368, 67169210, 134338420, 268676840]

約数ペア:

[(1, 268676840), (2, 134338420), (4, 67169210), (5, 53735368), (8, 33584605), (10, 26867684), (17, 15804520), (20, 13433842), (34, 7902260), (40, 6716921), (68, 3951130), (85, 3160904), (136, 1975565), (170, 1580452), (340, 790226), (680, 395113)]