39986440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{587}}^1$

素因数の和:742

約数の個数: 64

約数和(自身を含む): 97796160

約数和(自身を除く): 57809720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 131, 260, 262, 520, 524, 587, 655, 1048, 1174, 1310, 1703, 2348, 2620, 2935, 3406, 4696, 5240, 5870, 6812, 7631, 8515, 11740, 13624, 15262, 17030, 23480, 30524, 34060, 38155, 61048, 68120, 76310, 76897, 152620, 153794, 305240, 307588, 384485, 615176, 768970, 999661, 1537940, 1999322, 3075880, 3998644, 4998305, 7997288, 9996610, 19993220, 39986440]

約数ペア:

[(1, 39986440), (2, 19993220), (4, 9996610), (5, 7997288), (8, 4998305), (10, 3998644), (13, 3075880), (20, 1999322), (26, 1537940), (40, 999661), (52, 768970), (65, 615176), (104, 384485), (130, 307588), (131, 305240), (260, 153794), (262, 152620), (520, 76897), (524, 76310), (587, 68120), (655, 61048), (1048, 38155), (1174, 34060), (1310, 30524), (1703, 23480), (2348, 17030), (2620, 15262), (2935, 13624), (3406, 11740), (4696, 8515), (5240, 7631), (5870, 6812)]