25870520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{89}}^1$

素因数の和:169

約数の個数: 96

約数和(自身を含む): 65221200

約数和(自身を除く): 39350680

約数列:

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

約数ペア:

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