87509707.000000000

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1$

素因数の和:223

約数の個数: 128

約数和(自身を含む): 620421120

約数和(自身を除く): 366777880

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 43, 62, 67, 71, 86, 124, 134, 142, 155, 172, 215, 248, 268, 284, 310, 335, 344, 355, 430, 536, 568, 620, 670, 710, 860, 1240, 1333, 1340, 1420, 1720, 2077, 2201, 2666, 2680, 2840, 2881, 3053, 4154, 4402, 4757, 5332, 5762, 6106, 6665, 8308, 8804, 9514, 10385, 10664, 11005, 11524, 12212, 13330, 14405, 15265, 16616, 17608, 19028, 20770, 22010, 23048, 23785, 24424, 26660, 28810, 30530, 38056, 41540, 44020, 47570, 53320, 57620, 61060, 83080, 88040, 89311, 94643, 95140, 115240, 122120, 147467, 178622, 189286, 190280, 204551, 294934, 357244, 378572, 409102, 446555, 473215, 589868, 714488, 737335, 757144, 818204, 893110, 946430, 1022755, 1179736, 1474670, 1636408, 1786220, 1892860, 2045510, 2949340, 3572440, 3785720, 4091020, 5898680, 6341081, 8182040, 12682162, 25364324, 31705405, 50728648, 63410810, 126821620, 253643240]

約数ペア:

[(1, 253643240), (2, 126821620), (4, 63410810), (5, 50728648), (8, 31705405), (10, 25364324), (20, 12682162), (31, 8182040), (40, 6341081), (43, 5898680), (62, 4091020), (67, 3785720), (71, 3572440), (86, 2949340), (124, 2045510), (134, 1892860), (142, 1786220), (155, 1636408), (172, 1474670), (215, 1179736), (248, 1022755), (268, 946430), (284, 893110), (310, 818204), (335, 757144), (344, 737335), (355, 714488), (430, 589868), (536, 473215), (568, 446555), (620, 409102), (670, 378572), (710, 357244), (860, 294934), (1240, 204551), (1333, 190280), (1340, 189286), (1420, 178622), (1720, 147467), (2077, 122120), (2201, 115240), (2666, 95140), (2680, 94643), (2840, 89311), (2881, 88040), (3053, 83080), (4154, 61060), (4402, 57620), (4757, 53320), (5332, 47570), (5762, 44020), (6106, 41540), (6665, 38056), (8308, 30530), (8804, 28810), (9514, 26660), (10385, 24424), (10664, 23785), (11005, 23048), (11524, 22010), (12212, 20770), (13330, 19028), (14405, 17608), (15265, 16616)]