28271520

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{677}}^1$

素因数の和:727

約数の個数: 144

約数和(自身を含む): 99950760

約数和(自身を除く): 71679240

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 29, 30, 32, 36, 40, 45, 48, 58, 60, 72, 80, 87, 90, 96, 116, 120, 144, 145, 160, 174, 180, 232, 240, 261, 288, 290, 348, 360, 435, 464, 480, 522, 580, 677, 696, 720, 870, 928, 1044, 1160, 1305, 1354, 1392, 1440, 1740, 2031, 2088, 2320, 2610, 2708, 2784, 3385, 3480, 4062, 4176, 4640, 5220, 5416, 6093, 6770, 6960, 8124, 8352, 10155, 10440, 10832, 12186, 13540, 13920, 16248, 19633, 20310, 20880, 21664, 24372, 27080, 30465, 32496, 39266, 40620, 41760, 48744, 54160, 58899, 60930, 64992, 78532, 81240, 97488, 98165, 108320, 117798, 121860, 157064, 162480, 176697, 194976, 196330, 235596, 243720, 294495, 314128, 324960, 353394, 392660, 471192, 487440, 588990, 628256, 706788, 785320, 883485, 942384, 974880, 1177980, 1413576, 1570640, 1766970, 1884768, 2355960, 2827152, 3141280, 3533940, 4711920, 5654304, 7067880, 9423840, 14135760, 28271520]

約数ペア:

[(1, 28271520), (2, 14135760), (3, 9423840), (4, 7067880), (5, 5654304), (6, 4711920), (8, 3533940), (9, 3141280), (10, 2827152), (12, 2355960), (15, 1884768), (16, 1766970), (18, 1570640), (20, 1413576), (24, 1177980), (29, 974880), (30, 942384), (32, 883485), (36, 785320), (40, 706788), (45, 628256), (48, 588990), (58, 487440), (60, 471192), (72, 392660), (80, 353394), (87, 324960), (90, 314128), (96, 294495), (116, 243720), (120, 235596), (144, 196330), (145, 194976), (160, 176697), (174, 162480), (180, 157064), (232, 121860), (240, 117798), (261, 108320), (288, 98165), (290, 97488), (348, 81240), (360, 78532), (435, 64992), (464, 60930), (480, 58899), (522, 54160), (580, 48744), (677, 41760), (696, 40620), (720, 39266), (870, 32496), (928, 30465), (1044, 27080), (1160, 24372), (1305, 21664), (1354, 20880), (1392, 20310), (1440, 19633), (1740, 16248), (2031, 13920), (2088, 13540), (2320, 12186), (2610, 10832), (2708, 10440), (2784, 10155), (3385, 8352), (3480, 8124), (4062, 6960), (4176, 6770), (4640, 6093), (5220, 5416)]