205304320

素因数分解:

$2^9\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1$

素因数の和:266

約数の個数: 160

約数和(自身を含む): 549964800

約数和(自身を除く): 344660480

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 64, 65, 80, 104, 124, 128, 130, 155, 160, 199, 208, 248, 256, 260, 310, 320, 398, 403, 416, 496, 512, 520, 620, 640, 796, 806, 832, 992, 995, 1040, 1240, 1280, 1592, 1612, 1664, 1984, 1990, 2015, 2080, 2480, 2560, 2587, 3184, 3224, 3328, 3968, 3980, 4030, 4160, 4960, 5174, 6169, 6368, 6448, 6656, 7936, 7960, 8060, 8320, 9920, 10348, 12338, 12736, 12896, 12935, 15872, 15920, 16120, 16640, 19840, 20696, 24676, 25472, 25792, 25870, 30845, 31840, 32240, 33280, 39680, 41392, 49352, 50944, 51584, 51740, 61690, 63680, 64480, 79360, 80197, 82784, 98704, 101888, 103168, 103480, 123380, 127360, 128960, 160394, 165568, 197408, 206336, 206960, 246760, 254720, 257920, 320788, 331136, 394816, 400985, 413920, 493520, 509440, 515840, 641576, 662272, 789632, 801970, 827840, 987040, 1031680, 1283152, 1324544, 1579264, 1603940, 1655680, 1974080, 2566304, 3158528, 3207880, 3311360, 3948160, 5132608, 6415760, 6622720, 7896320, 10265216, 12831520, 15792640, 20530432, 25663040, 41060864, 51326080, 102652160, 205304320]

約数ペア:

[(1, 205304320), (2, 102652160), (4, 51326080), (5, 41060864), (8, 25663040), (10, 20530432), (13, 15792640), (16, 12831520), (20, 10265216), (26, 7896320), (31, 6622720), (32, 6415760), (40, 5132608), (52, 3948160), (62, 3311360), (64, 3207880), (65, 3158528), (80, 2566304), (104, 1974080), (124, 1655680), (128, 1603940), (130, 1579264), (155, 1324544), (160, 1283152), (199, 1031680), (208, 987040), (248, 827840), (256, 801970), (260, 789632), (310, 662272), (320, 641576), (398, 515840), (403, 509440), (416, 493520), (496, 413920), (512, 400985), (520, 394816), (620, 331136), (640, 320788), (796, 257920), (806, 254720), (832, 246760), (992, 206960), (995, 206336), (1040, 197408), (1240, 165568), (1280, 160394), (1592, 128960), (1612, 127360), (1664, 123380), (1984, 103480), (1990, 103168), (2015, 101888), (2080, 98704), (2480, 82784), (2560, 80197), (2587, 79360), (3184, 64480), (3224, 63680), (3328, 61690), (3968, 51740), (3980, 51584), (4030, 50944), (4160, 49352), (4960, 41392), (5174, 39680), (6169, 33280), (6368, 32240), (6448, 31840), (6656, 30845), (7936, 25870), (7960, 25792), (8060, 25472), (8320, 24676), (9920, 20696), (10348, 19840), (12338, 16640), (12736, 16120), (12896, 15920), (12935, 15872)]