81847535

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{167}}^1$

素因数の和:276

約数の個数: 64

約数和(自身を含む): 131604480

約数和(自身を除く): 49756945

約数列:

[1, 5, 7, 11, 19, 35, 55, 67, 77, 95, 133, 167, 209, 335, 385, 469, 665, 737, 835, 1045, 1169, 1273, 1463, 1837, 2345, 3173, 3685, 5159, 5845, 6365, 7315, 8911, 9185, 11189, 12859, 14003, 15865, 22211, 25795, 34903, 44555, 55945, 64295, 70015, 78323, 98021, 111055, 123079, 174515, 212591, 244321, 391615, 490105, 615395, 861553, 1062955, 1221605, 1488137, 2338501, 4307765, 7440685, 11692505, 16369507, 81847535]

約数ペア:

[(1, 81847535), (5, 16369507), (7, 11692505), (11, 7440685), (19, 4307765), (35, 2338501), (55, 1488137), (67, 1221605), (77, 1062955), (95, 861553), (133, 615395), (167, 490105), (209, 391615), (335, 244321), (385, 212591), (469, 174515), (665, 123079), (737, 111055), (835, 98021), (1045, 78323), (1169, 70015), (1273, 64295), (1463, 55945), (1837, 44555), (2345, 34903), (3173, 25795), (3685, 22211), (5159, 15865), (5845, 14003), (6365, 12859), (7315, 11189), (8911, 9185)]