28221440

素因数分解:

$2^{13}\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1$

素因数の和:97

約数の個数: 112

約数和(自身を含む): 74313288

約数和(自身を除く): 46091848

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 53, 64, 65, 80, 104, 106, 128, 130, 160, 208, 212, 256, 260, 265, 320, 416, 424, 512, 520, 530, 640, 689, 832, 848, 1024, 1040, 1060, 1280, 1378, 1664, 1696, 2048, 2080, 2120, 2560, 2756, 3328, 3392, 3445, 4096, 4160, 4240, 5120, 5512, 6656, 6784, 6890, 8192, 8320, 8480, 10240, 11024, 13312, 13568, 13780, 16640, 16960, 20480, 22048, 26624, 27136, 27560, 33280, 33920, 40960, 44096, 53248, 54272, 55120, 66560, 67840, 88192, 106496, 108544, 110240, 133120, 135680, 176384, 217088, 220480, 266240, 271360, 352768, 434176, 440960, 532480, 542720, 705536, 881920, 1085440, 1411072, 1763840, 2170880, 2822144, 3527680, 5644288, 7055360, 14110720, 28221440]

約数ペア:

[(1, 28221440), (2, 14110720), (4, 7055360), (5, 5644288), (8, 3527680), (10, 2822144), (13, 2170880), (16, 1763840), (20, 1411072), (26, 1085440), (32, 881920), (40, 705536), (52, 542720), (53, 532480), (64, 440960), (65, 434176), (80, 352768), (104, 271360), (106, 266240), (128, 220480), (130, 217088), (160, 176384), (208, 135680), (212, 133120), (256, 110240), (260, 108544), (265, 106496), (320, 88192), (416, 67840), (424, 66560), (512, 55120), (520, 54272), (530, 53248), (640, 44096), (689, 40960), (832, 33920), (848, 33280), (1024, 27560), (1040, 27136), (1060, 26624), (1280, 22048), (1378, 20480), (1664, 16960), (1696, 16640), (2048, 13780), (2080, 13568), (2120, 13312), (2560, 11024), (2756, 10240), (3328, 8480), (3392, 8320), (3445, 8192), (4096, 6890), (4160, 6784), (4240, 6656), (5120, 5512)]