320432560

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{1901}}^1$

素因数の和:1971

約数の個数: 120

約数和(自身を含む): 887260176

約数和(自身を除く): 566827616

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 43, 49, 56, 70, 80, 86, 98, 112, 140, 172, 196, 215, 245, 280, 301, 344, 392, 430, 490, 560, 602, 688, 784, 860, 980, 1204, 1505, 1720, 1901, 1960, 2107, 2408, 3010, 3440, 3802, 3920, 4214, 4816, 6020, 7604, 8428, 9505, 10535, 12040, 13307, 15208, 16856, 19010, 21070, 24080, 26614, 30416, 33712, 38020, 42140, 53228, 66535, 76040, 81743, 84280, 93149, 106456, 133070, 152080, 163486, 168560, 186298, 212912, 266140, 326972, 372596, 408715, 465745, 532280, 572201, 653944, 745192, 817430, 931490, 1064560, 1144402, 1307888, 1490384, 1634860, 1862980, 2288804, 2861005, 3269720, 3725960, 4005407, 4577608, 5722010, 6539440, 7451920, 8010814, 9155216, 11444020, 16021628, 20027035, 22888040, 32043256, 40054070, 45776080, 64086512, 80108140, 160216280, 320432560]

約数ペア:

[(1, 320432560), (2, 160216280), (4, 80108140), (5, 64086512), (7, 45776080), (8, 40054070), (10, 32043256), (14, 22888040), (16, 20027035), (20, 16021628), (28, 11444020), (35, 9155216), (40, 8010814), (43, 7451920), (49, 6539440), (56, 5722010), (70, 4577608), (80, 4005407), (86, 3725960), (98, 3269720), (112, 2861005), (140, 2288804), (172, 1862980), (196, 1634860), (215, 1490384), (245, 1307888), (280, 1144402), (301, 1064560), (344, 931490), (392, 817430), (430, 745192), (490, 653944), (560, 572201), (602, 532280), (688, 465745), (784, 408715), (860, 372596), (980, 326972), (1204, 266140), (1505, 212912), (1720, 186298), (1901, 168560), (1960, 163486), (2107, 152080), (2408, 133070), (3010, 106456), (3440, 93149), (3802, 84280), (3920, 81743), (4214, 76040), (4816, 66535), (6020, 53228), (7604, 42140), (8428, 38020), (9505, 33712), (10535, 30416), (12040, 26614), (13307, 24080), (15208, 21070), (16856, 19010)]