210318628

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{67}}^2$

素因数の和:221

約数の個数: 72

約数和(自身を含む): 434081592

約数和(自身を除く): 223762964

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 53, 67, 68, 106, 134, 212, 221, 268, 442, 689, 871, 884, 901, 1139, 1378, 1742, 1802, 2278, 2756, 3484, 3551, 3604, 4489, 4556, 7102, 8978, 11713, 14204, 14807, 17956, 23426, 29614, 46163, 46852, 58357, 59228, 60367, 76313, 92326, 116714, 120734, 152626, 184652, 233428, 237917, 241468, 305252, 475834, 784771, 951668, 992069, 1569542, 1984138, 3092921, 3139084, 3968276, 4044589, 6185842, 8089178, 12371684, 16178356, 52579657, 105159314, 210318628]

約数ペア:

[(1, 210318628), (2, 105159314), (4, 52579657), (13, 16178356), (17, 12371684), (26, 8089178), (34, 6185842), (52, 4044589), (53, 3968276), (67, 3139084), (68, 3092921), (106, 1984138), (134, 1569542), (212, 992069), (221, 951668), (268, 784771), (442, 475834), (689, 305252), (871, 241468), (884, 237917), (901, 233428), (1139, 184652), (1378, 152626), (1742, 120734), (1802, 116714), (2278, 92326), (2756, 76313), (3484, 60367), (3551, 59228), (3604, 58357), (4489, 46852), (4556, 46163), (7102, 29614), (8978, 23426), (11713, 17956), (14204, 14807)]