20951010

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{271}}^1\times {\mathrm{859}}^1$

素因数の和:1143

約数の個数: 48

約数和(自身を含む): 54737280

約数和(自身を除く): 33786270

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 271, 542, 813, 859, 1355, 1626, 1718, 2439, 2577, 2710, 4065, 4295, 4878, 5154, 7731, 8130, 8590, 12195, 12885, 15462, 24390, 25770, 38655, 77310, 232789, 465578, 698367, 1163945, 1396734, 2095101, 2327890, 3491835, 4190202, 6983670, 10475505, 20951010]

約数ペア:

[(1, 20951010), (2, 10475505), (3, 6983670), (5, 4190202), (6, 3491835), (9, 2327890), (10, 2095101), (15, 1396734), (18, 1163945), (30, 698367), (45, 465578), (90, 232789), (271, 77310), (542, 38655), (813, 25770), (859, 24390), (1355, 15462), (1626, 12885), (1718, 12195), (2439, 8590), (2577, 8130), (2710, 7731), (4065, 5154), (4295, 4878)]