20456748

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{43711}}^1$

素因数の和:43734

約数の個数: 36

約数和(自身を含む): 55689088

約数和(自身を除く): 35232340

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 468, 43711, 87422, 131133, 174844, 262266, 393399, 524532, 568243, 786798, 1136486, 1573596, 1704729, 2272972, 3409458, 5114187, 6818916, 10228374, 20456748]

約数ペア:

[(1, 20456748), (2, 10228374), (3, 6818916), (4, 5114187), (6, 3409458), (9, 2272972), (12, 1704729), (13, 1573596), (18, 1136486), (26, 786798), (36, 568243), (39, 524532), (52, 393399), (78, 262266), (117, 174844), (156, 131133), (234, 87422), (468, 43711)]