257263500

素因数分解:

$2^2\times 3^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{167}}^1$

素因数の和:281

約数の個数: 192

約数和(自身を含む): 821882880

約数和(自身を除く): 564619380

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 25, 26, 30, 39, 50, 52, 60, 65, 75, 78, 79, 100, 125, 130, 150, 156, 158, 167, 195, 237, 250, 260, 300, 316, 325, 334, 375, 390, 395, 474, 500, 501, 650, 668, 750, 780, 790, 835, 948, 975, 1002, 1027, 1185, 1300, 1500, 1580, 1625, 1670, 1950, 1975, 2004, 2054, 2171, 2370, 2505, 3081, 3250, 3340, 3900, 3950, 4108, 4175, 4342, 4740, 4875, 5010, 5135, 5925, 6162, 6500, 6513, 7900, 8350, 8684, 9750, 9875, 10020, 10270, 10855, 11850, 12324, 12525, 13026, 13193, 15405, 16700, 19500, 19750, 20540, 20875, 21710, 23700, 25050, 25675, 26052, 26386, 29625, 30810, 32565, 39500, 39579, 41750, 43420, 50100, 51350, 52772, 54275, 59250, 61620, 62625, 65130, 65965, 77025, 79158, 83500, 102700, 108550, 118500, 125250, 128375, 130260, 131930, 154050, 158316, 162825, 171509, 197895, 217100, 250500, 256750, 263860, 271375, 308100, 325650, 329825, 343018, 385125, 395790, 513500, 514527, 542750, 651300, 659650, 686036, 770250, 791580, 814125, 857545, 989475, 1029054, 1085500, 1319300, 1540500, 1628250, 1649125, 1715090, 1978950, 2058108, 2572635, 3256500, 3298250, 3430180, 3957900, 4287725, 4947375, 5145270, 6596500, 8575450, 9894750, 10290540, 12863175, 17150900, 19789500, 21438625, 25726350, 42877250, 51452700, 64315875, 85754500, 128631750, 257263500]

約数ペア:

[(1, 257263500), (2, 128631750), (3, 85754500), (4, 64315875), (5, 51452700), (6, 42877250), (10, 25726350), (12, 21438625), (13, 19789500), (15, 17150900), (20, 12863175), (25, 10290540), (26, 9894750), (30, 8575450), (39, 6596500), (50, 5145270), (52, 4947375), (60, 4287725), (65, 3957900), (75, 3430180), (78, 3298250), (79, 3256500), (100, 2572635), (125, 2058108), (130, 1978950), (150, 1715090), (156, 1649125), (158, 1628250), (167, 1540500), (195, 1319300), (237, 1085500), (250, 1029054), (260, 989475), (300, 857545), (316, 814125), (325, 791580), (334, 770250), (375, 686036), (390, 659650), (395, 651300), (474, 542750), (500, 514527), (501, 513500), (650, 395790), (668, 385125), (750, 343018), (780, 329825), (790, 325650), (835, 308100), (948, 271375), (975, 263860), (1002, 256750), (1027, 250500), (1185, 217100), (1300, 197895), (1500, 171509), (1580, 162825), (1625, 158316), (1670, 154050), (1950, 131930), (1975, 130260), (2004, 128375), (2054, 125250), (2171, 118500), (2370, 108550), (2505, 102700), (3081, 83500), (3250, 79158), (3340, 77025), (3900, 65965), (3950, 65130), (4108, 62625), (4175, 61620), (4342, 59250), (4740, 54275), (4875, 52772), (5010, 51350), (5135, 50100), (5925, 43420), (6162, 41750), (6500, 39579), (6513, 39500), (7900, 32565), (8350, 30810), (8684, 29625), (9750, 26386), (9875, 26052), (10020, 25675), (10270, 25050), (10855, 23700), (11850, 21710), (12324, 20875), (12525, 20540), (13026, 19750), (13193, 19500), (15405, 16700)]