80681120

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{491}}^1$

素因数の和:598

約数の個数: 96

約数和(自身を含む): 208293120

約数和(自身を除く): 127612000

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 79, 80, 104, 130, 158, 160, 208, 260, 316, 395, 416, 491, 520, 632, 790, 982, 1027, 1040, 1264, 1580, 1964, 2054, 2080, 2455, 2528, 3160, 3928, 4108, 4910, 5135, 6320, 6383, 7856, 8216, 9820, 10270, 12640, 12766, 15712, 16432, 19640, 20540, 25532, 31915, 32864, 38789, 39280, 41080, 51064, 63830, 77578, 78560, 82160, 102128, 127660, 155156, 164320, 193945, 204256, 255320, 310312, 387890, 504257, 510640, 620624, 775780, 1008514, 1021280, 1241248, 1551560, 2017028, 2521285, 3103120, 4034056, 5042570, 6206240, 8068112, 10085140, 16136224, 20170280, 40340560, 80681120]

約数ペア:

[(1, 80681120), (2, 40340560), (4, 20170280), (5, 16136224), (8, 10085140), (10, 8068112), (13, 6206240), (16, 5042570), (20, 4034056), (26, 3103120), (32, 2521285), (40, 2017028), (52, 1551560), (65, 1241248), (79, 1021280), (80, 1008514), (104, 775780), (130, 620624), (158, 510640), (160, 504257), (208, 387890), (260, 310312), (316, 255320), (395, 204256), (416, 193945), (491, 164320), (520, 155156), (632, 127660), (790, 102128), (982, 82160), (1027, 78560), (1040, 77578), (1264, 63830), (1580, 51064), (1964, 41080), (2054, 39280), (2080, 38789), (2455, 32864), (2528, 31915), (3160, 25532), (3928, 20540), (4108, 19640), (4910, 16432), (5135, 15712), (6320, 12766), (6383, 12640), (7856, 10270), (8216, 9820)]