81725364

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{211}}^1$

素因数の和:310

約数の個数: 144

約数和(自身を含む): 250024320

約数和(自身を除く): 168298956

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 29, 36, 42, 53, 58, 63, 84, 87, 106, 116, 126, 159, 174, 203, 211, 212, 252, 261, 318, 348, 371, 406, 422, 477, 522, 609, 633, 636, 742, 812, 844, 954, 1044, 1113, 1218, 1266, 1477, 1484, 1537, 1827, 1899, 1908, 2226, 2436, 2532, 2954, 3074, 3339, 3654, 3798, 4431, 4452, 4611, 5908, 6119, 6148, 6678, 7308, 7596, 8862, 9222, 10759, 11183, 12238, 13293, 13356, 13833, 17724, 18357, 18444, 21518, 22366, 24476, 26586, 27666, 32277, 33549, 36714, 42833, 43036, 44732, 53172, 55071, 55332, 64554, 67098, 73428, 78281, 85666, 96831, 100647, 110142, 128499, 129108, 134196, 156562, 171332, 193662, 201294, 220284, 234843, 256998, 313124, 324307, 385497, 387324, 402588, 469686, 513996, 648614, 704529, 770994, 939372, 972921, 1297228, 1409058, 1541988, 1945842, 2270149, 2818116, 2918763, 3891684, 4540298, 5837526, 6810447, 9080596, 11675052, 13620894, 20431341, 27241788, 40862682, 81725364]

約数ペア:

[(1, 81725364), (2, 40862682), (3, 27241788), (4, 20431341), (6, 13620894), (7, 11675052), (9, 9080596), (12, 6810447), (14, 5837526), (18, 4540298), (21, 3891684), (28, 2918763), (29, 2818116), (36, 2270149), (42, 1945842), (53, 1541988), (58, 1409058), (63, 1297228), (84, 972921), (87, 939372), (106, 770994), (116, 704529), (126, 648614), (159, 513996), (174, 469686), (203, 402588), (211, 387324), (212, 385497), (252, 324307), (261, 313124), (318, 256998), (348, 234843), (371, 220284), (406, 201294), (422, 193662), (477, 171332), (522, 156562), (609, 134196), (633, 129108), (636, 128499), (742, 110142), (812, 100647), (844, 96831), (954, 85666), (1044, 78281), (1113, 73428), (1218, 67098), (1266, 64554), (1477, 55332), (1484, 55071), (1537, 53172), (1827, 44732), (1899, 43036), (1908, 42833), (2226, 36714), (2436, 33549), (2532, 32277), (2954, 27666), (3074, 26586), (3339, 24476), (3654, 22366), (3798, 21518), (4431, 18444), (4452, 18357), (4611, 17724), (5908, 13833), (6119, 13356), (6148, 13293), (6678, 12238), (7308, 11183), (7596, 10759), (8862, 9222)]