81996525

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{97}}^1$

素因数の和:160

約数の個数: 108

約数和(自身を含む): 169745212

約数和(自身を除く): 87748687

約数列:

[1, 3, 5, 9, 13, 15, 17, 25, 39, 45, 51, 65, 75, 85, 97, 117, 153, 195, 221, 225, 255, 289, 291, 325, 425, 485, 585, 663, 765, 867, 873, 975, 1105, 1261, 1275, 1445, 1455, 1649, 1989, 2425, 2601, 2925, 3315, 3757, 3783, 3825, 4335, 4365, 4947, 5525, 6305, 7225, 7275, 8245, 9945, 11271, 11349, 13005, 14841, 16575, 18785, 18915, 21437, 21675, 21825, 24735, 28033, 31525, 33813, 41225, 49725, 56355, 56745, 64311, 65025, 74205, 84099, 93925, 94575, 107185, 123675, 140165, 169065, 192933, 252297, 281775, 283725, 321555, 364429, 371025, 420495, 535925, 700825, 845325, 964665, 1093287, 1261485, 1607775, 1822145, 2102475, 3279861, 4823325, 5466435, 6307425, 9110725, 16399305, 27332175, 81996525]

約数ペア:

[(1, 81996525), (3, 27332175), (5, 16399305), (9, 9110725), (13, 6307425), (15, 5466435), (17, 4823325), (25, 3279861), (39, 2102475), (45, 1822145), (51, 1607775), (65, 1261485), (75, 1093287), (85, 964665), (97, 845325), (117, 700825), (153, 535925), (195, 420495), (221, 371025), (225, 364429), (255, 321555), (289, 283725), (291, 281775), (325, 252297), (425, 192933), (485, 169065), (585, 140165), (663, 123675), (765, 107185), (867, 94575), (873, 93925), (975, 84099), (1105, 74205), (1261, 65025), (1275, 64311), (1445, 56745), (1455, 56355), (1649, 49725), (1989, 41225), (2425, 33813), (2601, 31525), (2925, 28033), (3315, 24735), (3757, 21825), (3783, 21675), (3825, 21437), (4335, 18915), (4365, 18785), (4947, 16575), (5525, 14841), (6305, 13005), (7225, 11349), (7275, 11271), (8245, 9945)]