1815192120

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{173}}^1\times {\mathrm{12491}}^1$

素因数の和:12685

約数の個数: 128

約数和(自身を含む): 6259991040

約数和(自身を除く): 4444798920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 173, 210, 280, 346, 420, 519, 692, 840, 865, 1038, 1211, 1384, 1730, 2076, 2422, 2595, 3460, 3633, 4152, 4844, 5190, 6055, 6920, 7266, 9688, 10380, 12110, 12491, 14532, 18165, 20760, 24220, 24982, 29064, 36330, 37473, 48440, 49964, 62455, 72660, 74946, 87437, 99928, 124910, 145320, 149892, 174874, 187365, 249820, 262311, 299784, 349748, 374730, 437185, 499640, 524622, 699496, 749460, 874370, 1049244, 1311555, 1498920, 1748740, 2098488, 2160943, 2623110, 3497480, 4321886, 5246220, 6482829, 8643772, 10492440, 10804715, 12965658, 15126601, 17287544, 21609430, 25931316, 30253202, 32414145, 43218860, 45379803, 51862632, 60506404, 64828290, 75633005, 86437720, 90759606, 121012808, 129656580, 151266010, 181519212, 226899015, 259313160, 302532020, 363038424, 453798030, 605064040, 907596060, 1815192120]

約数ペア:

[(1, 1815192120), (2, 907596060), (3, 605064040), (4, 453798030), (5, 363038424), (6, 302532020), (7, 259313160), (8, 226899015), (10, 181519212), (12, 151266010), (14, 129656580), (15, 121012808), (20, 90759606), (21, 86437720), (24, 75633005), (28, 64828290), (30, 60506404), (35, 51862632), (40, 45379803), (42, 43218860), (56, 32414145), (60, 30253202), (70, 25931316), (84, 21609430), (105, 17287544), (120, 15126601), (140, 12965658), (168, 10804715), (173, 10492440), (210, 8643772), (280, 6482829), (346, 5246220), (420, 4321886), (519, 3497480), (692, 2623110), (840, 2160943), (865, 2098488), (1038, 1748740), (1211, 1498920), (1384, 1311555), (1730, 1049244), (2076, 874370), (2422, 749460), (2595, 699496), (3460, 524622), (3633, 499640), (4152, 437185), (4844, 374730), (5190, 349748), (6055, 299784), (6920, 262311), (7266, 249820), (9688, 187365), (10380, 174874), (12110, 149892), (12491, 145320), (14532, 124910), (18165, 99928), (20760, 87437), (24220, 74946), (24982, 72660), (29064, 62455), (36330, 49964), (37473, 48440)]