20403900090

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{32387143}}^1$

素因数の和:32387163

約数の個数: 48

約数和(自身を含む): 60628733568

約数和(自身を除く): 40224833478

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 315, 630, 32387143, 64774286, 97161429, 161935715, 194322858, 226710001, 291484287, 323871430, 453420002, 485807145, 582968574, 680130003, 971614290, 1133550005, 1360260006, 1457421435, 2040390009, 2267100010, 2914842870, 3400650015, 4080780018, 6801300030, 10201950045, 20403900090]

約数ペア:

[(1, 20403900090), (2, 10201950045), (3, 6801300030), (5, 4080780018), (6, 3400650015), (7, 2914842870), (9, 2267100010), (10, 2040390009), (14, 1457421435), (15, 1360260006), (18, 1133550005), (21, 971614290), (30, 680130003), (35, 582968574), (42, 485807145), (45, 453420002), (63, 323871430), (70, 291484287), (90, 226710001), (105, 194322858), (126, 161935715), (210, 97161429), (315, 64774286), (630, 32387143)]