205221120

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{4111}}^1$

素因数の和:4148

約数の個数: 144

約数和(自身を含む): 706013952

約数和(自身を除く): 500792832

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, 480, 520, 624, 640, 768, 780, 832, 960, 1040, 1248, 1280, 1560, 1664, 1920, 2080, 2496, 3120, 3328, 3840, 4111, 4160, 4992, 6240, 8222, 8320, 9984, 12333, 12480, 16444, 16640, 20555, 24666, 24960, 32888, 41110, 49332, 49920, 53443, 61665, 65776, 82220, 98664, 106886, 123330, 131552, 160329, 164440, 197328, 213772, 246660, 263104, 267215, 320658, 328880, 394656, 427544, 493320, 526208, 534430, 641316, 657760, 789312, 801645, 855088, 986640, 1052416, 1068860, 1282632, 1315520, 1578624, 1603290, 1710176, 1973280, 2137720, 2565264, 2631040, 3157248, 3206580, 3420352, 3946560, 4275440, 5130528, 5262080, 6413160, 6840704, 7893120, 8550880, 10261056, 12826320, 13681408, 15786240, 17101760, 20522112, 25652640, 34203520, 41044224, 51305280, 68407040, 102610560, 205221120]

約数ペア:

[(1, 205221120), (2, 102610560), (3, 68407040), (4, 51305280), (5, 41044224), (6, 34203520), (8, 25652640), (10, 20522112), (12, 17101760), (13, 15786240), (15, 13681408), (16, 12826320), (20, 10261056), (24, 8550880), (26, 7893120), (30, 6840704), (32, 6413160), (39, 5262080), (40, 5130528), (48, 4275440), (52, 3946560), (60, 3420352), (64, 3206580), (65, 3157248), (78, 2631040), (80, 2565264), (96, 2137720), (104, 1973280), (120, 1710176), (128, 1603290), (130, 1578624), (156, 1315520), (160, 1282632), (192, 1068860), (195, 1052416), (208, 986640), (240, 855088), (256, 801645), (260, 789312), (312, 657760), (320, 641316), (384, 534430), (390, 526208), (416, 493320), (480, 427544), (520, 394656), (624, 328880), (640, 320658), (768, 267215), (780, 263104), (832, 246660), (960, 213772), (1040, 197328), (1248, 164440), (1280, 160329), (1560, 131552), (1664, 123330), (1920, 106886), (2080, 98664), (2496, 82220), (3120, 65776), (3328, 61665), (3840, 53443), (4111, 49920), (4160, 49332), (4992, 41110), (6240, 32888), (8222, 24960), (8320, 24666), (9984, 20555), (12333, 16640), (12480, 16444)]