21914880

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{439}}^1$

素因数の和:476

約数の個数: 144

約数和(自身を含む): 75546240

約数和(自身を除く): 53631360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 64, 65, 78, 80, 96, 104, 120, 128, 130, 156, 160, 192, 195, 208, 240, 256, 260, 312, 320, 384, 390, 416, 439, 480, 520, 624, 640, 768, 780, 832, 878, 960, 1040, 1248, 1280, 1317, 1560, 1664, 1756, 1920, 2080, 2195, 2496, 2634, 3120, 3328, 3512, 3840, 4160, 4390, 4992, 5268, 5707, 6240, 6585, 7024, 8320, 8780, 9984, 10536, 11414, 12480, 13170, 14048, 16640, 17121, 17560, 21072, 22828, 24960, 26340, 28096, 28535, 34242, 35120, 42144, 45656, 49920, 52680, 56192, 57070, 68484, 70240, 84288, 85605, 91312, 105360, 112384, 114140, 136968, 140480, 168576, 171210, 182624, 210720, 228280, 273936, 280960, 337152, 342420, 365248, 421440, 456560, 547872, 561920, 684840, 730496, 842880, 913120, 1095744, 1369680, 1460992, 1685760, 1826240, 2191488, 2739360, 3652480, 4382976, 5478720, 7304960, 10957440, 21914880]

約数ペア:

[(1, 21914880), (2, 10957440), (3, 7304960), (4, 5478720), (5, 4382976), (6, 3652480), (8, 2739360), (10, 2191488), (12, 1826240), (13, 1685760), (15, 1460992), (16, 1369680), (20, 1095744), (24, 913120), (26, 842880), (30, 730496), (32, 684840), (39, 561920), (40, 547872), (48, 456560), (52, 421440), (60, 365248), (64, 342420), (65, 337152), (78, 280960), (80, 273936), (96, 228280), (104, 210720), (120, 182624), (128, 171210), (130, 168576), (156, 140480), (160, 136968), (192, 114140), (195, 112384), (208, 105360), (240, 91312), (256, 85605), (260, 84288), (312, 70240), (320, 68484), (384, 57070), (390, 56192), (416, 52680), (439, 49920), (480, 45656), (520, 42144), (624, 35120), (640, 34242), (768, 28535), (780, 28096), (832, 26340), (878, 24960), (960, 22828), (1040, 21072), (1248, 17560), (1280, 17121), (1317, 16640), (1560, 14048), (1664, 13170), (1756, 12480), (1920, 11414), (2080, 10536), (2195, 9984), (2496, 8780), (2634, 8320), (3120, 7024), (3328, 6585), (3512, 6240), (3840, 5707), (4160, 5268), (4390, 4992)]