20171304

素因数分解:

$2^3\times 3^2\times {\mathrm{281}}^1\times {\mathrm{997}}^1$

素因数の和:1290

約数の個数: 48

約数和(自身を含む): 54880020

約数和(自身を除く): 34708716

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 281, 562, 843, 997, 1124, 1686, 1994, 2248, 2529, 2991, 3372, 3988, 5058, 5982, 6744, 7976, 8973, 10116, 11964, 17946, 20232, 23928, 35892, 71784, 280157, 560314, 840471, 1120628, 1680942, 2241256, 2521413, 3361884, 5042826, 6723768, 10085652, 20171304]

約数ペア:

[(1, 20171304), (2, 10085652), (3, 6723768), (4, 5042826), (6, 3361884), (8, 2521413), (9, 2241256), (12, 1680942), (18, 1120628), (24, 840471), (36, 560314), (72, 280157), (281, 71784), (562, 35892), (843, 23928), (997, 20232), (1124, 17946), (1686, 11964), (1994, 10116), (2248, 8973), (2529, 7976), (2991, 6744), (3372, 5982), (3988, 5058)]