2800240

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1$

素因数の和:130

約数の個数: 80

約数和(自身を含む): 7231680

約数和(自身を除く): 4431440

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 29, 34, 40, 58, 68, 71, 80, 85, 116, 136, 142, 145, 170, 232, 272, 284, 290, 340, 355, 464, 493, 568, 580, 680, 710, 986, 1136, 1160, 1207, 1360, 1420, 1972, 2059, 2320, 2414, 2465, 2840, 3944, 4118, 4828, 4930, 5680, 6035, 7888, 8236, 9656, 9860, 10295, 12070, 16472, 19312, 19720, 20590, 24140, 32944, 35003, 39440, 41180, 48280, 70006, 82360, 96560, 140012, 164720, 175015, 280024, 350030, 560048, 700060, 1400120, 2800240]

約数ペア:

[(1, 2800240), (2, 1400120), (4, 700060), (5, 560048), (8, 350030), (10, 280024), (16, 175015), (17, 164720), (20, 140012), (29, 96560), (34, 82360), (40, 70006), (58, 48280), (68, 41180), (71, 39440), (80, 35003), (85, 32944), (116, 24140), (136, 20590), (142, 19720), (145, 19312), (170, 16472), (232, 12070), (272, 10295), (284, 9860), (290, 9656), (340, 8236), (355, 7888), (464, 6035), (493, 5680), (568, 4930), (580, 4828), (680, 4118), (710, 3944), (986, 2840), (1136, 2465), (1160, 2414), (1207, 2320), (1360, 2059), (1420, 1972)]