19904460

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{2113}}^1$

素因数の和:2282

約数の個数: 48

約数和(自身を含む): 56114016

約数和(自身を除く): 36209556

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 157, 314, 471, 628, 785, 942, 1570, 1884, 2113, 2355, 3140, 4226, 4710, 6339, 8452, 9420, 10565, 12678, 21130, 25356, 31695, 42260, 63390, 126780, 331741, 663482, 995223, 1326964, 1658705, 1990446, 3317410, 3980892, 4976115, 6634820, 9952230, 19904460]

約数ペア:

[(1, 19904460), (2, 9952230), (3, 6634820), (4, 4976115), (5, 3980892), (6, 3317410), (10, 1990446), (12, 1658705), (15, 1326964), (20, 995223), (30, 663482), (60, 331741), (157, 126780), (314, 63390), (471, 42260), (628, 31695), (785, 25356), (942, 21130), (1570, 12678), (1884, 10565), (2113, 9420), (2355, 8452), (3140, 6339), (4226, 4710)]