87080720

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1\times {\mathrm{191}}^1$

素因数の和:384

約数の個数: 80

約数和(自身を含む): 209986560

約数和(自身を除く): 122905840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 139, 164, 191, 205, 278, 328, 382, 410, 556, 656, 695, 764, 820, 955, 1112, 1390, 1528, 1640, 1910, 2224, 2780, 3056, 3280, 3820, 5560, 5699, 7640, 7831, 11120, 11398, 15280, 15662, 22796, 26549, 28495, 31324, 39155, 45592, 53098, 56990, 62648, 78310, 91184, 106196, 113980, 125296, 132745, 156620, 212392, 227960, 265490, 313240, 424784, 455920, 530980, 626480, 1061960, 1088509, 2123920, 2177018, 4354036, 5442545, 8708072, 10885090, 17416144, 21770180, 43540360, 87080720]

約数ペア:

[(1, 87080720), (2, 43540360), (4, 21770180), (5, 17416144), (8, 10885090), (10, 8708072), (16, 5442545), (20, 4354036), (40, 2177018), (41, 2123920), (80, 1088509), (82, 1061960), (139, 626480), (164, 530980), (191, 455920), (205, 424784), (278, 313240), (328, 265490), (382, 227960), (410, 212392), (556, 156620), (656, 132745), (695, 125296), (764, 113980), (820, 106196), (955, 91184), (1112, 78310), (1390, 62648), (1528, 56990), (1640, 53098), (1910, 45592), (2224, 39155), (2780, 31324), (3056, 28495), (3280, 26549), (3820, 22796), (5560, 15662), (5699, 15280), (7640, 11398), (7831, 11120)]