20470590

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{10831}}^1$

素因数の和:10854

約数の個数: 64

約数和(自身を含む): 62392320

約数和(自身を除く): 41921730

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 90, 105, 126, 135, 189, 210, 270, 315, 378, 630, 945, 1890, 10831, 21662, 32493, 54155, 64986, 75817, 97479, 108310, 151634, 162465, 194958, 227451, 292437, 324930, 379085, 454902, 487395, 584874, 682353, 758170, 974790, 1137255, 1364706, 1462185, 2047059, 2274510, 2924370, 3411765, 4094118, 6823530, 10235295, 20470590]

約数ペア:

[(1, 20470590), (2, 10235295), (3, 6823530), (5, 4094118), (6, 3411765), (7, 2924370), (9, 2274510), (10, 2047059), (14, 1462185), (15, 1364706), (18, 1137255), (21, 974790), (27, 758170), (30, 682353), (35, 584874), (42, 487395), (45, 454902), (54, 379085), (63, 324930), (70, 292437), (90, 227451), (105, 194958), (126, 162465), (135, 151634), (189, 108310), (210, 97479), (270, 75817), (315, 64986), (378, 54155), (630, 32493), (945, 21662), (1890, 10831)]