81363870

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1$

素因数の和:215

約数の個数: 192

約数和(自身を含む): 262020096

約数和(自身を除く): 180656226

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 17, 18, 21, 30, 34, 35, 42, 45, 51, 63, 70, 71, 85, 90, 102, 105, 107, 119, 126, 142, 153, 170, 210, 213, 214, 238, 255, 306, 315, 321, 355, 357, 426, 497, 510, 535, 595, 630, 639, 642, 710, 714, 749, 765, 963, 994, 1065, 1070, 1071, 1190, 1207, 1278, 1491, 1498, 1530, 1605, 1785, 1819, 1926, 2130, 2142, 2247, 2414, 2485, 2982, 3195, 3210, 3570, 3621, 3638, 3745, 4473, 4494, 4815, 4970, 5355, 5457, 6035, 6390, 6741, 7242, 7455, 7490, 7597, 8449, 8946, 9095, 9630, 10710, 10863, 10914, 11235, 12070, 12733, 13482, 14910, 15194, 16371, 16898, 18105, 18190, 21726, 22365, 22470, 22791, 25347, 25466, 27285, 32742, 33705, 36210, 37985, 38199, 42245, 44730, 45582, 50694, 53179, 54315, 54570, 63665, 67410, 68373, 75970, 76041, 76398, 81855, 84490, 106358, 108630, 113955, 114597, 126735, 127330, 129149, 136746, 152082, 159537, 163710, 190995, 227910, 229194, 253470, 258298, 265895, 319074, 341865, 380205, 381990, 387447, 478611, 531790, 572985, 645745, 683730, 760410, 774894, 797685, 904043, 957222, 1145970, 1162341, 1291490, 1595370, 1808086, 1937235, 2324682, 2393055, 2712129, 3874470, 4520215, 4786110, 5424258, 5811705, 8136387, 9040430, 11623410, 13560645, 16272774, 27121290, 40681935, 81363870]

約数ペア:

[(1, 81363870), (2, 40681935), (3, 27121290), (5, 16272774), (6, 13560645), (7, 11623410), (9, 9040430), (10, 8136387), (14, 5811705), (15, 5424258), (17, 4786110), (18, 4520215), (21, 3874470), (30, 2712129), (34, 2393055), (35, 2324682), (42, 1937235), (45, 1808086), (51, 1595370), (63, 1291490), (70, 1162341), (71, 1145970), (85, 957222), (90, 904043), (102, 797685), (105, 774894), (107, 760410), (119, 683730), (126, 645745), (142, 572985), (153, 531790), (170, 478611), (210, 387447), (213, 381990), (214, 380205), (238, 341865), (255, 319074), (306, 265895), (315, 258298), (321, 253470), (355, 229194), (357, 227910), (426, 190995), (497, 163710), (510, 159537), (535, 152082), (595, 136746), (630, 129149), (639, 127330), (642, 126735), (710, 114597), (714, 113955), (749, 108630), (765, 106358), (963, 84490), (994, 81855), (1065, 76398), (1070, 76041), (1071, 75970), (1190, 68373), (1207, 67410), (1278, 63665), (1491, 54570), (1498, 54315), (1530, 53179), (1605, 50694), (1785, 45582), (1819, 44730), (1926, 42245), (2130, 38199), (2142, 37985), (2247, 36210), (2414, 33705), (2485, 32742), (2982, 27285), (3195, 25466), (3210, 25347), (3570, 22791), (3621, 22470), (3638, 22365), (3745, 21726), (4473, 18190), (4494, 18105), (4815, 16898), (4970, 16371), (5355, 15194), (5457, 14910), (6035, 13482), (6390, 12733), (6741, 12070), (7242, 11235), (7455, 10914), (7490, 10863), (7597, 10710), (8449, 9630), (8946, 9095)]