2015326480

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{269}}^1\times {\mathrm{1319}}^1$

素因数の和:1672

約数の個数: 80

約数和(自身を含む): 4772908800

約数和(自身を除く): 2757582320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 269, 284, 355, 538, 568, 710, 1076, 1136, 1319, 1345, 1420, 2152, 2638, 2690, 2840, 4304, 5276, 5380, 5680, 6595, 10552, 10760, 13190, 19099, 21104, 21520, 26380, 38198, 52760, 76396, 93649, 95495, 105520, 152792, 187298, 190990, 305584, 354811, 374596, 381980, 468245, 709622, 749192, 763960, 936490, 1419244, 1498384, 1527920, 1774055, 1872980, 2838488, 3548110, 3745960, 5676976, 7096220, 7491920, 14192440, 25191581, 28384880, 50383162, 100766324, 125957905, 201532648, 251915810, 403065296, 503831620, 1007663240, 2015326480]

約数ペア:

[(1, 2015326480), (2, 1007663240), (4, 503831620), (5, 403065296), (8, 251915810), (10, 201532648), (16, 125957905), (20, 100766324), (40, 50383162), (71, 28384880), (80, 25191581), (142, 14192440), (269, 7491920), (284, 7096220), (355, 5676976), (538, 3745960), (568, 3548110), (710, 2838488), (1076, 1872980), (1136, 1774055), (1319, 1527920), (1345, 1498384), (1420, 1419244), (2152, 936490), (2638, 763960), (2690, 749192), (2840, 709622), (4304, 468245), (5276, 381980), (5380, 374596), (5680, 354811), (6595, 305584), (10552, 190990), (10760, 187298), (13190, 152792), (19099, 105520), (21104, 95495), (21520, 93649), (26380, 76396), (38198, 52760)]