86980400

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{389}}^1$

素因数の和:463

約数の個数: 120

約数和(自身を含む): 230870640

約数和(自身を除く): 143890240

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 43, 50, 52, 65, 80, 86, 100, 104, 130, 172, 200, 208, 215, 260, 325, 344, 389, 400, 430, 520, 559, 650, 688, 778, 860, 1040, 1075, 1118, 1300, 1556, 1720, 1945, 2150, 2236, 2600, 2795, 3112, 3440, 3890, 4300, 4472, 5057, 5200, 5590, 6224, 7780, 8600, 8944, 9725, 10114, 11180, 13975, 15560, 16727, 17200, 19450, 20228, 22360, 25285, 27950, 31120, 33454, 38900, 40456, 44720, 50570, 55900, 66908, 77800, 80912, 83635, 101140, 111800, 126425, 133816, 155600, 167270, 202280, 217451, 223600, 252850, 267632, 334540, 404560, 418175, 434902, 505700, 669080, 836350, 869804, 1011400, 1087255, 1338160, 1672700, 1739608, 2022800, 2174510, 3345400, 3479216, 4349020, 5436275, 6690800, 8698040, 10872550, 17396080, 21745100, 43490200, 86980400]

約数ペア:

[(1, 86980400), (2, 43490200), (4, 21745100), (5, 17396080), (8, 10872550), (10, 8698040), (13, 6690800), (16, 5436275), (20, 4349020), (25, 3479216), (26, 3345400), (40, 2174510), (43, 2022800), (50, 1739608), (52, 1672700), (65, 1338160), (80, 1087255), (86, 1011400), (100, 869804), (104, 836350), (130, 669080), (172, 505700), (200, 434902), (208, 418175), (215, 404560), (260, 334540), (325, 267632), (344, 252850), (389, 223600), (400, 217451), (430, 202280), (520, 167270), (559, 155600), (650, 133816), (688, 126425), (778, 111800), (860, 101140), (1040, 83635), (1075, 80912), (1118, 77800), (1300, 66908), (1556, 55900), (1720, 50570), (1945, 44720), (2150, 40456), (2236, 38900), (2600, 33454), (2795, 31120), (3112, 27950), (3440, 25285), (3890, 22360), (4300, 20228), (4472, 19450), (5057, 17200), (5200, 16727), (5590, 15560), (6224, 13975), (7780, 11180), (8600, 10114), (8944, 9725)]