20902230

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{271}}^1\times {\mathrm{857}}^1$

素因数の和:1141

約数の個数: 48

約数和(自身を含む): 54609984

約数和(自身を除く): 33707754

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 271, 542, 813, 857, 1355, 1626, 1714, 2439, 2571, 2710, 4065, 4285, 4878, 5142, 7713, 8130, 8570, 12195, 12855, 15426, 24390, 25710, 38565, 77130, 232247, 464494, 696741, 1161235, 1393482, 2090223, 2322470, 3483705, 4180446, 6967410, 10451115, 20902230]

約数ペア:

[(1, 20902230), (2, 10451115), (3, 6967410), (5, 4180446), (6, 3483705), (9, 2322470), (10, 2090223), (15, 1393482), (18, 1161235), (30, 696741), (45, 464494), (90, 232247), (271, 77130), (542, 38565), (813, 25710), (857, 24390), (1355, 15426), (1626, 12855), (1714, 12195), (2439, 8570), (2571, 8130), (2710, 7713), (4065, 5142), (4285, 4878)]