256280400

素因数分解:

$2^4\times 3^2\times 5^2\times {\mathrm{257}}^1\times {\mathrm{277}}^1$

素因数の和:558

約数の個数: 180

約数和(自身を含む): 896047932

約数和(自身を除く): 639767532

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 30, 36, 40, 45, 48, 50, 60, 72, 75, 80, 90, 100, 120, 144, 150, 180, 200, 225, 240, 257, 277, 300, 360, 400, 450, 514, 554, 600, 720, 771, 831, 900, 1028, 1108, 1200, 1285, 1385, 1542, 1662, 1800, 2056, 2216, 2313, 2493, 2570, 2770, 3084, 3324, 3600, 3855, 4112, 4155, 4432, 4626, 4986, 5140, 5540, 6168, 6425, 6648, 6925, 7710, 8310, 9252, 9972, 10280, 11080, 11565, 12336, 12465, 12850, 13296, 13850, 15420, 16620, 18504, 19275, 19944, 20560, 20775, 22160, 23130, 24930, 25700, 27700, 30840, 33240, 37008, 38550, 39888, 41550, 46260, 49860, 51400, 55400, 57825, 61680, 62325, 66480, 71189, 77100, 83100, 92520, 99720, 102800, 110800, 115650, 124650, 142378, 154200, 166200, 185040, 199440, 213567, 231300, 249300, 284756, 308400, 332400, 355945, 427134, 462600, 498600, 569512, 640701, 711890, 854268, 925200, 997200, 1067835, 1139024, 1281402, 1423780, 1708536, 1779725, 2135670, 2562804, 2847560, 3203505, 3417072, 3559450, 4271340, 5125608, 5339175, 5695120, 6407010, 7118900, 8542680, 10251216, 10678350, 12814020, 14237800, 16017525, 17085360, 21356700, 25628040, 28475600, 32035050, 42713400, 51256080, 64070100, 85426800, 128140200, 256280400]

約数ペア:

[(1, 256280400), (2, 128140200), (3, 85426800), (4, 64070100), (5, 51256080), (6, 42713400), (8, 32035050), (9, 28475600), (10, 25628040), (12, 21356700), (15, 17085360), (16, 16017525), (18, 14237800), (20, 12814020), (24, 10678350), (25, 10251216), (30, 8542680), (36, 7118900), (40, 6407010), (45, 5695120), (48, 5339175), (50, 5125608), (60, 4271340), (72, 3559450), (75, 3417072), (80, 3203505), (90, 2847560), (100, 2562804), (120, 2135670), (144, 1779725), (150, 1708536), (180, 1423780), (200, 1281402), (225, 1139024), (240, 1067835), (257, 997200), (277, 925200), (300, 854268), (360, 711890), (400, 640701), (450, 569512), (514, 498600), (554, 462600), (600, 427134), (720, 355945), (771, 332400), (831, 308400), (900, 284756), (1028, 249300), (1108, 231300), (1200, 213567), (1285, 199440), (1385, 185040), (1542, 166200), (1662, 154200), (1800, 142378), (2056, 124650), (2216, 115650), (2313, 110800), (2493, 102800), (2570, 99720), (2770, 92520), (3084, 83100), (3324, 77100), (3600, 71189), (3855, 66480), (4112, 62325), (4155, 61680), (4432, 57825), (4626, 55400), (4986, 51400), (5140, 49860), (5540, 46260), (6168, 41550), (6425, 39888), (6648, 38550), (6925, 37008), (7710, 33240), (8310, 30840), (9252, 27700), (9972, 25700), (10280, 24930), (11080, 23130), (11565, 22160), (12336, 20775), (12465, 20560), (12850, 19944), (13296, 19275), (13850, 18504), (15420, 16620)]