128965600

素因数分解:

$2^5\times 5^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{163}}^1$

素因数の和:249

約数の個数: 144

約数和(自身を含む): 338228352

約数和(自身を除く): 209262752

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 25, 32, 40, 43, 46, 50, 80, 86, 92, 100, 115, 160, 163, 172, 184, 200, 215, 230, 326, 344, 368, 400, 430, 460, 575, 652, 688, 736, 800, 815, 860, 920, 989, 1075, 1150, 1304, 1376, 1630, 1720, 1840, 1978, 2150, 2300, 2608, 3260, 3440, 3680, 3749, 3956, 4075, 4300, 4600, 4945, 5216, 6520, 6880, 7009, 7498, 7912, 8150, 8600, 9200, 9890, 13040, 14018, 14996, 15824, 16300, 17200, 18400, 18745, 19780, 24725, 26080, 28036, 29992, 31648, 32600, 34400, 35045, 37490, 39560, 49450, 56072, 59984, 65200, 70090, 74980, 79120, 93725, 98900, 112144, 119968, 130400, 140180, 149960, 158240, 161207, 175225, 187450, 197800, 224288, 280360, 299920, 322414, 350450, 374900, 395600, 560720, 599840, 644828, 700900, 749800, 791200, 806035, 1121440, 1289656, 1401800, 1499600, 1612070, 2579312, 2803600, 2999200, 3224140, 4030175, 5158624, 5607200, 6448280, 8060350, 12896560, 16120700, 25793120, 32241400, 64482800, 128965600]

約数ペア:

[(1, 128965600), (2, 64482800), (4, 32241400), (5, 25793120), (8, 16120700), (10, 12896560), (16, 8060350), (20, 6448280), (23, 5607200), (25, 5158624), (32, 4030175), (40, 3224140), (43, 2999200), (46, 2803600), (50, 2579312), (80, 1612070), (86, 1499600), (92, 1401800), (100, 1289656), (115, 1121440), (160, 806035), (163, 791200), (172, 749800), (184, 700900), (200, 644828), (215, 599840), (230, 560720), (326, 395600), (344, 374900), (368, 350450), (400, 322414), (430, 299920), (460, 280360), (575, 224288), (652, 197800), (688, 187450), (736, 175225), (800, 161207), (815, 158240), (860, 149960), (920, 140180), (989, 130400), (1075, 119968), (1150, 112144), (1304, 98900), (1376, 93725), (1630, 79120), (1720, 74980), (1840, 70090), (1978, 65200), (2150, 59984), (2300, 56072), (2608, 49450), (3260, 39560), (3440, 37490), (3680, 35045), (3749, 34400), (3956, 32600), (4075, 31648), (4300, 29992), (4600, 28036), (4945, 26080), (5216, 24725), (6520, 19780), (6880, 18745), (7009, 18400), (7498, 17200), (7912, 16300), (8150, 15824), (8600, 14996), (9200, 14018), (9890, 13040)]