81917444

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{971}}^1$

素因数の和:1136

約数の個数: 48

約数和(自身を含む): 172440576

約数和(自身を除く): 90523132

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 131, 161, 262, 322, 524, 644, 917, 971, 1834, 1942, 3013, 3668, 3884, 6026, 6797, 12052, 13594, 21091, 22333, 27188, 42182, 44666, 84364, 89332, 127201, 156331, 254402, 312662, 508804, 625324, 890407, 1780814, 2925623, 3561628, 5851246, 11702492, 20479361, 40958722, 81917444]

約数ペア:

[(1, 81917444), (2, 40958722), (4, 20479361), (7, 11702492), (14, 5851246), (23, 3561628), (28, 2925623), (46, 1780814), (92, 890407), (131, 625324), (161, 508804), (262, 312662), (322, 254402), (524, 156331), (644, 127201), (917, 89332), (971, 84364), (1834, 44666), (1942, 42182), (3013, 27188), (3668, 22333), (3884, 21091), (6026, 13594), (6797, 12052)]