178688412

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{521}}^1\times {\mathrm{1361}}^1$

素因数の和:1899

約数の個数: 72

約数和(自身を含む): 517581792

約数和(自身を除く): 338893380

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 521, 1042, 1361, 1563, 2084, 2722, 3126, 3647, 4083, 4689, 5444, 6252, 7294, 8166, 9378, 9527, 10941, 12249, 14588, 16332, 18756, 19054, 21882, 24498, 28581, 32823, 38108, 43764, 48996, 57162, 65646, 85743, 114324, 131292, 171486, 342972, 709081, 1418162, 2127243, 2836324, 4254486, 4963567, 6381729, 8508972, 9927134, 12763458, 14890701, 19854268, 25526916, 29781402, 44672103, 59562804, 89344206, 178688412]

約数ペア:

[(1, 178688412), (2, 89344206), (3, 59562804), (4, 44672103), (6, 29781402), (7, 25526916), (9, 19854268), (12, 14890701), (14, 12763458), (18, 9927134), (21, 8508972), (28, 6381729), (36, 4963567), (42, 4254486), (63, 2836324), (84, 2127243), (126, 1418162), (252, 709081), (521, 342972), (1042, 171486), (1361, 131292), (1563, 114324), (2084, 85743), (2722, 65646), (3126, 57162), (3647, 48996), (4083, 43764), (4689, 38108), (5444, 32823), (6252, 28581), (7294, 24498), (8166, 21882), (9378, 19054), (9527, 18756), (10941, 16332), (12249, 14588)]