261035880

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{191}}^1\times {\mathrm{1627}}^1$

素因数の和:1839

約数の個数: 128

約数和(自身を含む): 900218880

約数和(自身を除く): 639183000

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 191, 210, 280, 382, 420, 573, 764, 840, 955, 1146, 1337, 1528, 1627, 1910, 2292, 2674, 2865, 3254, 3820, 4011, 4584, 4881, 5348, 5730, 6508, 6685, 7640, 8022, 8135, 9762, 10696, 11389, 11460, 13016, 13370, 16044, 16270, 19524, 20055, 22778, 22920, 24405, 26740, 32088, 32540, 34167, 39048, 40110, 45556, 48810, 53480, 56945, 65080, 68334, 80220, 91112, 97620, 113890, 136668, 160440, 170835, 195240, 227780, 273336, 310757, 341670, 455560, 621514, 683340, 932271, 1243028, 1366680, 1553785, 1864542, 2175299, 2486056, 3107570, 3729084, 4350598, 4661355, 6215140, 6525897, 7458168, 8701196, 9322710, 10876495, 12430280, 13051794, 17402392, 18645420, 21752990, 26103588, 32629485, 37290840, 43505980, 52207176, 65258970, 87011960, 130517940, 261035880]

約数ペア:

[(1, 261035880), (2, 130517940), (3, 87011960), (4, 65258970), (5, 52207176), (6, 43505980), (7, 37290840), (8, 32629485), (10, 26103588), (12, 21752990), (14, 18645420), (15, 17402392), (20, 13051794), (21, 12430280), (24, 10876495), (28, 9322710), (30, 8701196), (35, 7458168), (40, 6525897), (42, 6215140), (56, 4661355), (60, 4350598), (70, 3729084), (84, 3107570), (105, 2486056), (120, 2175299), (140, 1864542), (168, 1553785), (191, 1366680), (210, 1243028), (280, 932271), (382, 683340), (420, 621514), (573, 455560), (764, 341670), (840, 310757), (955, 273336), (1146, 227780), (1337, 195240), (1528, 170835), (1627, 160440), (1910, 136668), (2292, 113890), (2674, 97620), (2865, 91112), (3254, 80220), (3820, 68334), (4011, 65080), (4584, 56945), (4881, 53480), (5348, 48810), (5730, 45556), (6508, 40110), (6685, 39048), (7640, 34167), (8022, 32540), (8135, 32088), (9762, 26740), (10696, 24405), (11389, 22920), (11460, 22778), (13016, 20055), (13370, 19524), (16044, 16270)]