84081920

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1$

素因数の和:228

約数の個数: 144

約数和(自身を含む): 225265152

約数和(自身を除く): 141183232

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, 163, 208, 248, 256, 260, 310, 320, 326, 403, 416, 496, 520, 620, 640, 652, 806, 815, 832, 992, 1040, 1240, 1280, 1304, 1612, 1630, 1664, 1984, 2015, 2080, 2119, 2480, 2608, 3224, 3260, 3328, 3968, 4030, 4160, 4238, 4960, 5053, 5216, 6448, 6520, 7936, 8060, 8320, 8476, 9920, 10106, 10432, 10595, 12896, 13040, 16120, 16640, 16952, 19840, 20212, 20864, 21190, 25265, 25792, 26080, 32240, 33904, 39680, 40424, 41728, 42380, 50530, 51584, 52160, 64480, 65689, 67808, 80848, 84760, 101060, 103168, 104320, 128960, 131378, 135616, 161696, 169520, 202120, 208640, 257920, 262756, 271232, 323392, 328445, 339040, 404240, 515840, 525512, 542464, 646784, 656890, 678080, 808480, 1051024, 1293568, 1313780, 1356160, 1616960, 2102048, 2627560, 2712320, 3233920, 4204096, 5255120, 6467840, 8408192, 10510240, 16816384, 21020480, 42040960, 84081920]

約数ペア:

[(1, 84081920), (2, 42040960), (4, 21020480), (5, 16816384), (8, 10510240), (10, 8408192), (13, 6467840), (16, 5255120), (20, 4204096), (26, 3233920), (31, 2712320), (32, 2627560), (40, 2102048), (52, 1616960), (62, 1356160), (64, 1313780), (65, 1293568), (80, 1051024), (104, 808480), (124, 678080), (128, 656890), (130, 646784), (155, 542464), (160, 525512), (163, 515840), (208, 404240), (248, 339040), (256, 328445), (260, 323392), (310, 271232), (320, 262756), (326, 257920), (403, 208640), (416, 202120), (496, 169520), (520, 161696), (620, 135616), (640, 131378), (652, 128960), (806, 104320), (815, 103168), (832, 101060), (992, 84760), (1040, 80848), (1240, 67808), (1280, 65689), (1304, 64480), (1612, 52160), (1630, 51584), (1664, 50530), (1984, 42380), (2015, 41728), (2080, 40424), (2119, 39680), (2480, 33904), (2608, 32240), (3224, 26080), (3260, 25792), (3328, 25265), (3968, 21190), (4030, 20864), (4160, 20212), (4238, 19840), (4960, 16952), (5053, 16640), (5216, 16120), (6448, 13040), (6520, 12896), (7936, 10595), (8060, 10432), (8320, 10106), (8476, 9920)]