51741040

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{89}}^1$

素因数の和:171

約数の個数: 120

約数和(自身を含む): 134790480

約数和(自身を除く): 83049440

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 43, 52, 65, 80, 86, 89, 104, 130, 169, 172, 178, 208, 215, 260, 338, 344, 356, 430, 445, 520, 559, 676, 688, 712, 845, 860, 890, 1040, 1118, 1157, 1352, 1424, 1690, 1720, 1780, 2236, 2314, 2704, 2795, 3380, 3440, 3560, 3827, 4472, 4628, 5590, 5785, 6760, 7120, 7267, 7654, 8944, 9256, 11180, 11570, 13520, 14534, 15041, 15308, 18512, 19135, 22360, 23140, 29068, 30082, 30616, 36335, 38270, 44720, 46280, 49751, 58136, 60164, 61232, 72670, 75205, 76540, 92560, 99502, 116272, 120328, 145340, 150410, 153080, 199004, 240656, 248755, 290680, 300820, 306160, 398008, 497510, 581360, 601640, 646763, 796016, 995020, 1203280, 1293526, 1990040, 2587052, 3233815, 3980080, 5174104, 6467630, 10348208, 12935260, 25870520, 51741040]

約数ペア:

[(1, 51741040), (2, 25870520), (4, 12935260), (5, 10348208), (8, 6467630), (10, 5174104), (13, 3980080), (16, 3233815), (20, 2587052), (26, 1990040), (40, 1293526), (43, 1203280), (52, 995020), (65, 796016), (80, 646763), (86, 601640), (89, 581360), (104, 497510), (130, 398008), (169, 306160), (172, 300820), (178, 290680), (208, 248755), (215, 240656), (260, 199004), (338, 153080), (344, 150410), (356, 145340), (430, 120328), (445, 116272), (520, 99502), (559, 92560), (676, 76540), (688, 75205), (712, 72670), (845, 61232), (860, 60164), (890, 58136), (1040, 49751), (1118, 46280), (1157, 44720), (1352, 38270), (1424, 36335), (1690, 30616), (1720, 30082), (1780, 29068), (2236, 23140), (2314, 22360), (2704, 19135), (2795, 18512), (3380, 15308), (3440, 15041), (3560, 14534), (3827, 13520), (4472, 11570), (4628, 11180), (5590, 9256), (5785, 8944), (6760, 7654), (7120, 7267)]