126654320

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{631}}^1$

素因数の和:850

約数の個数: 80

約数和(自身を含む): 319271232

約数和(自身を除く): 192616912

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 193, 208, 260, 386, 520, 631, 772, 965, 1040, 1262, 1544, 1930, 2509, 2524, 3088, 3155, 3860, 5018, 5048, 6310, 7720, 8203, 10036, 10096, 12545, 12620, 15440, 16406, 20072, 25090, 25240, 32812, 40144, 41015, 50180, 50480, 65624, 82030, 100360, 121783, 131248, 164060, 200720, 243566, 328120, 487132, 608915, 656240, 974264, 1217830, 1583179, 1948528, 2435660, 3166358, 4871320, 6332716, 7915895, 9742640, 12665432, 15831790, 25330864, 31663580, 63327160, 126654320]

約数ペア:

[(1, 126654320), (2, 63327160), (4, 31663580), (5, 25330864), (8, 15831790), (10, 12665432), (13, 9742640), (16, 7915895), (20, 6332716), (26, 4871320), (40, 3166358), (52, 2435660), (65, 1948528), (80, 1583179), (104, 1217830), (130, 974264), (193, 656240), (208, 608915), (260, 487132), (386, 328120), (520, 243566), (631, 200720), (772, 164060), (965, 131248), (1040, 121783), (1262, 100360), (1544, 82030), (1930, 65624), (2509, 50480), (2524, 50180), (3088, 41015), (3155, 40144), (3860, 32812), (5018, 25240), (5048, 25090), (6310, 20072), (7720, 16406), (8203, 15440), (10036, 12620), (10096, 12545)]