853994740

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{13183}}^1$

素因数の和:13312

約数の個数: 48

約数和(自身を含む): 1860526080

約数和(自身を除く): 1006531340

約数列:

[1, 2, 4, 5, 10, 20, 41, 79, 82, 158, 164, 205, 316, 395, 410, 790, 820, 1580, 3239, 6478, 12956, 13183, 16195, 26366, 32390, 52732, 64780, 65915, 131830, 263660, 540503, 1041457, 1081006, 2082914, 2162012, 2702515, 4165828, 5207285, 5405030, 10414570, 10810060, 20829140, 42699737, 85399474, 170798948, 213498685, 426997370, 853994740]

約数ペア:

[(1, 853994740), (2, 426997370), (4, 213498685), (5, 170798948), (10, 85399474), (20, 42699737), (41, 20829140), (79, 10810060), (82, 10414570), (158, 5405030), (164, 5207285), (205, 4165828), (316, 2702515), (395, 2162012), (410, 2082914), (790, 1081006), (820, 1041457), (1580, 540503), (3239, 263660), (6478, 131830), (12956, 65915), (13183, 64780), (16195, 52732), (26366, 32390)]