20610086

素因数分解:

$2^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1$

素因数の和:261

約数の個数: 48

約数和(自身を含む): 38782800

約数和(自身を除く): 18172714

約数列:

[1, 2, 7, 14, 17, 34, 49, 89, 98, 119, 139, 178, 238, 278, 623, 833, 973, 1246, 1513, 1666, 1946, 2363, 3026, 4361, 4726, 6811, 8722, 10591, 12371, 13622, 16541, 21182, 24742, 33082, 74137, 86597, 115787, 148274, 173194, 210307, 231574, 420614, 606179, 1212358, 1472149, 2944298, 10305043, 20610086]

約数ペア:

[(1, 20610086), (2, 10305043), (7, 2944298), (14, 1472149), (17, 1212358), (34, 606179), (49, 420614), (89, 231574), (98, 210307), (119, 173194), (139, 148274), (178, 115787), (238, 86597), (278, 74137), (623, 33082), (833, 24742), (973, 21182), (1246, 16541), (1513, 13622), (1666, 12371), (1946, 10591), (2363, 8722), (3026, 6811), (4361, 4726)]