81670358

素因数分解:

$2^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{137}}^1$

素因数の和:250

約数の個数: 64

約数和(自身を含む): 158976000

約数和(自身を除く): 77305642

約数列:

[1, 2, 7, 11, 14, 22, 49, 77, 79, 98, 137, 154, 158, 274, 343, 539, 553, 686, 869, 959, 1078, 1106, 1507, 1738, 1918, 3014, 3773, 3871, 6083, 6713, 7546, 7742, 10549, 10823, 12166, 13426, 21098, 21646, 27097, 42581, 46991, 54194, 73843, 75761, 85162, 93982, 119053, 147686, 151522, 238106, 298067, 516901, 530327, 596134, 833371, 1033802, 1060654, 1666742, 3712289, 5833597, 7424578, 11667194, 40835179, 81670358]

約数ペア:

[(1, 81670358), (2, 40835179), (7, 11667194), (11, 7424578), (14, 5833597), (22, 3712289), (49, 1666742), (77, 1060654), (79, 1033802), (98, 833371), (137, 596134), (154, 530327), (158, 516901), (274, 298067), (343, 238106), (539, 151522), (553, 147686), (686, 119053), (869, 93982), (959, 85162), (1078, 75761), (1106, 73843), (1507, 54194), (1738, 46991), (1918, 42581), (3014, 27097), (3773, 21646), (3871, 21098), (6083, 13426), (6713, 12166), (7546, 10823), (7742, 10549)]