81503030

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{23}}^2\times {\mathrm{31}}^1\times {\mathrm{71}}^1$

素因数の和:162

約数の個数: 96

約数和(自身を含む): 183472128

約数和(自身を除く): 101969098

約数列:

[1, 2, 5, 7, 10, 14, 23, 31, 35, 46, 62, 70, 71, 115, 142, 155, 161, 217, 230, 310, 322, 355, 434, 497, 529, 710, 713, 805, 994, 1058, 1085, 1426, 1610, 1633, 2170, 2201, 2485, 2645, 3266, 3565, 3703, 4402, 4970, 4991, 5290, 7130, 7406, 8165, 9982, 11005, 11431, 15407, 16330, 16399, 18515, 22010, 22862, 24955, 30814, 32798, 37030, 37559, 49910, 50623, 57155, 75118, 77035, 81995, 101246, 114310, 114793, 154070, 163990, 187795, 229586, 253115, 262913, 354361, 375590, 506230, 525826, 573965, 708722, 1147930, 1164329, 1314565, 1771805, 2328658, 2629130, 3543610, 5821645, 8150303, 11643290, 16300606, 40751515, 81503030]

約数ペア:

[(1, 81503030), (2, 40751515), (5, 16300606), (7, 11643290), (10, 8150303), (14, 5821645), (23, 3543610), (31, 2629130), (35, 2328658), (46, 1771805), (62, 1314565), (70, 1164329), (71, 1147930), (115, 708722), (142, 573965), (155, 525826), (161, 506230), (217, 375590), (230, 354361), (310, 262913), (322, 253115), (355, 229586), (434, 187795), (497, 163990), (529, 154070), (710, 114793), (713, 114310), (805, 101246), (994, 81995), (1058, 77035), (1085, 75118), (1426, 57155), (1610, 50623), (1633, 49910), (2170, 37559), (2201, 37030), (2485, 32798), (2645, 30814), (3266, 24955), (3565, 22862), (3703, 22010), (4402, 18515), (4970, 16399), (4991, 16330), (5290, 15407), (7130, 11431), (7406, 11005), (8165, 9982)]