85571720

素因数分解:

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

素因数の和:199

約数の個数: 96

約数和(自身を含む): 214666200

約数和(自身を除く): 129094480

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 43, 52, 65, 86, 89, 104, 130, 172, 178, 215, 260, 344, 356, 430, 445, 520, 559, 712, 860, 890, 1118, 1157, 1720, 1780, 1849, 2236, 2314, 2795, 3560, 3698, 3827, 4472, 4628, 5590, 5785, 7396, 7654, 9245, 9256, 11180, 11570, 14792, 15308, 18490, 19135, 22360, 23140, 24037, 30616, 36980, 38270, 46280, 48074, 49751, 73960, 76540, 96148, 99502, 120185, 153080, 164561, 192296, 199004, 240370, 248755, 329122, 398008, 480740, 497510, 658244, 822805, 961480, 995020, 1316488, 1645610, 1990040, 2139293, 3291220, 4278586, 6582440, 8557172, 10696465, 17114344, 21392930, 42785860, 85571720]

約数ペア:

[(1, 85571720), (2, 42785860), (4, 21392930), (5, 17114344), (8, 10696465), (10, 8557172), (13, 6582440), (20, 4278586), (26, 3291220), (40, 2139293), (43, 1990040), (52, 1645610), (65, 1316488), (86, 995020), (89, 961480), (104, 822805), (130, 658244), (172, 497510), (178, 480740), (215, 398008), (260, 329122), (344, 248755), (356, 240370), (430, 199004), (445, 192296), (520, 164561), (559, 153080), (712, 120185), (860, 99502), (890, 96148), (1118, 76540), (1157, 73960), (1720, 49751), (1780, 48074), (1849, 46280), (2236, 38270), (2314, 36980), (2795, 30616), (3560, 24037), (3698, 23140), (3827, 22360), (4472, 19135), (4628, 18490), (5590, 15308), (5785, 14792), (7396, 11570), (7654, 11180), (9245, 9256)]