28777140

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{331}}^1$

素因数の和:379

約数の個数: 192

約数和(自身を含む): 107089920

約数和(自身を除く): 78312780

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 23, 27, 28, 30, 35, 36, 42, 45, 46, 54, 60, 63, 69, 70, 84, 90, 92, 105, 108, 115, 126, 135, 138, 140, 161, 180, 189, 207, 210, 230, 252, 270, 276, 315, 322, 331, 345, 378, 414, 420, 460, 483, 540, 621, 630, 644, 662, 690, 756, 805, 828, 945, 966, 993, 1035, 1242, 1260, 1324, 1380, 1449, 1610, 1655, 1890, 1932, 1986, 2070, 2317, 2415, 2484, 2898, 2979, 3105, 3220, 3310, 3780, 3972, 4140, 4347, 4634, 4830, 4965, 5796, 5958, 6210, 6620, 6951, 7245, 7613, 8694, 8937, 9268, 9660, 9930, 11585, 11916, 12420, 13902, 14490, 14895, 15226, 17388, 17874, 19860, 20853, 21735, 22839, 23170, 27804, 28980, 29790, 30452, 34755, 35748, 38065, 41706, 43470, 44685, 45678, 46340, 53291, 59580, 62559, 68517, 69510, 76130, 83412, 86940, 89370, 91356, 104265, 106582, 114195, 125118, 137034, 139020, 152260, 159873, 178740, 205551, 208530, 213164, 228390, 250236, 266455, 274068, 312795, 319746, 342585, 411102, 417060, 456780, 479619, 532910, 625590, 639492, 685170, 799365, 822204, 959238, 1027755, 1065820, 1251180, 1370340, 1438857, 1598730, 1918476, 2055510, 2398095, 2877714, 3197460, 4111020, 4796190, 5755428, 7194285, 9592380, 14388570, 28777140]

約数ペア:

[(1, 28777140), (2, 14388570), (3, 9592380), (4, 7194285), (5, 5755428), (6, 4796190), (7, 4111020), (9, 3197460), (10, 2877714), (12, 2398095), (14, 2055510), (15, 1918476), (18, 1598730), (20, 1438857), (21, 1370340), (23, 1251180), (27, 1065820), (28, 1027755), (30, 959238), (35, 822204), (36, 799365), (42, 685170), (45, 639492), (46, 625590), (54, 532910), (60, 479619), (63, 456780), (69, 417060), (70, 411102), (84, 342585), (90, 319746), (92, 312795), (105, 274068), (108, 266455), (115, 250236), (126, 228390), (135, 213164), (138, 208530), (140, 205551), (161, 178740), (180, 159873), (189, 152260), (207, 139020), (210, 137034), (230, 125118), (252, 114195), (270, 106582), (276, 104265), (315, 91356), (322, 89370), (331, 86940), (345, 83412), (378, 76130), (414, 69510), (420, 68517), (460, 62559), (483, 59580), (540, 53291), (621, 46340), (630, 45678), (644, 44685), (662, 43470), (690, 41706), (756, 38065), (805, 35748), (828, 34755), (945, 30452), (966, 29790), (993, 28980), (1035, 27804), (1242, 23170), (1260, 22839), (1324, 21735), (1380, 20853), (1449, 19860), (1610, 17874), (1655, 17388), (1890, 15226), (1932, 14895), (1986, 14490), (2070, 13902), (2317, 12420), (2415, 11916), (2484, 11585), (2898, 9930), (2979, 9660), (3105, 9268), (3220, 8937), (3310, 8694), (3780, 7613), (3972, 7245), (4140, 6951), (4347, 6620), (4634, 6210), (4830, 5958), (4965, 5796)]