28437840

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{311}}^1$

素因数の和:457

約数の個数: 120

約数和(自身を含む): 96565248

約数和(自身を除く): 68127408

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 127, 144, 180, 240, 254, 311, 360, 381, 508, 622, 635, 720, 762, 933, 1016, 1143, 1244, 1270, 1524, 1555, 1866, 1905, 2032, 2286, 2488, 2540, 2799, 3048, 3110, 3732, 3810, 4572, 4665, 4976, 5080, 5598, 5715, 6096, 6220, 7464, 7620, 9144, 9330, 10160, 11196, 11430, 12440, 13995, 14928, 15240, 18288, 18660, 22392, 22860, 24880, 27990, 30480, 37320, 39497, 44784, 45720, 55980, 74640, 78994, 91440, 111960, 118491, 157988, 197485, 223920, 236982, 315976, 355473, 394970, 473964, 592455, 631952, 710946, 789940, 947928, 1184910, 1421892, 1579880, 1777365, 1895856, 2369820, 2843784, 3159760, 3554730, 4739640, 5687568, 7109460, 9479280, 14218920, 28437840]

約数ペア:

[(1, 28437840), (2, 14218920), (3, 9479280), (4, 7109460), (5, 5687568), (6, 4739640), (8, 3554730), (9, 3159760), (10, 2843784), (12, 2369820), (15, 1895856), (16, 1777365), (18, 1579880), (20, 1421892), (24, 1184910), (30, 947928), (36, 789940), (40, 710946), (45, 631952), (48, 592455), (60, 473964), (72, 394970), (80, 355473), (90, 315976), (120, 236982), (127, 223920), (144, 197485), (180, 157988), (240, 118491), (254, 111960), (311, 91440), (360, 78994), (381, 74640), (508, 55980), (622, 45720), (635, 44784), (720, 39497), (762, 37320), (933, 30480), (1016, 27990), (1143, 24880), (1244, 22860), (1270, 22392), (1524, 18660), (1555, 18288), (1866, 15240), (1905, 14928), (2032, 13995), (2286, 12440), (2488, 11430), (2540, 11196), (2799, 10160), (3048, 9330), (3110, 9144), (3732, 7620), (3810, 7464), (4572, 6220), (4665, 6096), (4976, 5715), (5080, 5598)]