173121320

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{127}}^1\times {\mathrm{643}}^1$

素因数の和:834

約数の個数: 64

約数和(自身を含む): 400619520

約数和(自身を除く): 227498200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 127, 212, 254, 265, 424, 508, 530, 635, 643, 1016, 1060, 1270, 1286, 2120, 2540, 2572, 3215, 5080, 5144, 6430, 6731, 12860, 13462, 25720, 26924, 33655, 34079, 53848, 67310, 68158, 81661, 134620, 136316, 163322, 170395, 269240, 272632, 326644, 340790, 408305, 653288, 681580, 816610, 1363160, 1633220, 3266440, 4328033, 8656066, 17312132, 21640165, 34624264, 43280330, 86560660, 173121320]

約数ペア:

[(1, 173121320), (2, 86560660), (4, 43280330), (5, 34624264), (8, 21640165), (10, 17312132), (20, 8656066), (40, 4328033), (53, 3266440), (106, 1633220), (127, 1363160), (212, 816610), (254, 681580), (265, 653288), (424, 408305), (508, 340790), (530, 326644), (635, 272632), (643, 269240), (1016, 170395), (1060, 163322), (1270, 136316), (1286, 134620), (2120, 81661), (2540, 68158), (2572, 67310), (3215, 53848), (5080, 34079), (5144, 33655), (6430, 26924), (6731, 25720), (12860, 13462)]