20517090

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{787}}^1$

素因数の和:887

約数の個数: 64

約数和(自身を含む): 54466560

約数和(自身を除く): 33949470

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 79, 110, 158, 165, 237, 330, 395, 474, 787, 790, 869, 1185, 1574, 1738, 2361, 2370, 2607, 3935, 4345, 4722, 5214, 7870, 8657, 8690, 11805, 13035, 17314, 23610, 25971, 26070, 43285, 51942, 62173, 86570, 124346, 129855, 186519, 259710, 310865, 373038, 621730, 683903, 932595, 1367806, 1865190, 2051709, 3419515, 4103418, 6839030, 10258545, 20517090]

約数ペア:

[(1, 20517090), (2, 10258545), (3, 6839030), (5, 4103418), (6, 3419515), (10, 2051709), (11, 1865190), (15, 1367806), (22, 932595), (30, 683903), (33, 621730), (55, 373038), (66, 310865), (79, 259710), (110, 186519), (158, 129855), (165, 124346), (237, 86570), (330, 62173), (395, 51942), (474, 43285), (787, 26070), (790, 25971), (869, 23610), (1185, 17314), (1574, 13035), (1738, 11805), (2361, 8690), (2370, 8657), (2607, 7870), (3935, 5214), (4345, 4722)]