161565740

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{8677}}^1$

素因数の和:8719

約数の個数: 72

約数和(自身を含む): 415502640

約数和(自身を除く): 253936900

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 49, 70, 76, 95, 98, 133, 140, 190, 196, 245, 266, 380, 490, 532, 665, 931, 980, 1330, 1862, 2660, 3724, 4655, 8677, 9310, 17354, 18620, 34708, 43385, 60739, 86770, 121478, 164863, 173540, 242956, 303695, 329726, 425173, 607390, 659452, 824315, 850346, 1154041, 1214780, 1648630, 1700692, 2125865, 2308082, 3297260, 4251730, 4616164, 5770205, 8078287, 8503460, 11540410, 16156574, 23080820, 32313148, 40391435, 80782870, 161565740]

約数ペア:

[(1, 161565740), (2, 80782870), (4, 40391435), (5, 32313148), (7, 23080820), (10, 16156574), (14, 11540410), (19, 8503460), (20, 8078287), (28, 5770205), (35, 4616164), (38, 4251730), (49, 3297260), (70, 2308082), (76, 2125865), (95, 1700692), (98, 1648630), (133, 1214780), (140, 1154041), (190, 850346), (196, 824315), (245, 659452), (266, 607390), (380, 425173), (490, 329726), (532, 303695), (665, 242956), (931, 173540), (980, 164863), (1330, 121478), (1862, 86770), (2660, 60739), (3724, 43385), (4655, 34708), (8677, 18620), (9310, 17354)]