81369210

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1$

素因数の和:260

約数の個数: 128

約数和(自身を含む): 225792000

約数和(自身を除く): 144422790

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 19, 26, 30, 38, 39, 57, 65, 78, 79, 95, 114, 130, 139, 158, 190, 195, 237, 247, 278, 285, 390, 395, 417, 474, 494, 570, 695, 741, 790, 834, 1027, 1185, 1235, 1390, 1482, 1501, 1807, 2054, 2085, 2370, 2470, 2641, 3002, 3081, 3614, 3705, 4170, 4503, 5135, 5282, 5421, 6162, 7410, 7505, 7923, 9006, 9035, 10270, 10842, 10981, 13205, 15010, 15405, 15846, 18070, 19513, 21962, 22515, 26410, 27105, 30810, 32943, 34333, 39026, 39615, 45030, 54210, 54905, 58539, 65886, 68666, 79230, 97565, 102999, 109810, 117078, 142753, 164715, 171665, 195130, 205998, 208639, 285506, 292695, 329430, 343330, 417278, 428259, 514995, 585390, 625917, 713765, 856518, 1029990, 1043195, 1251834, 1427530, 2086390, 2141295, 2712307, 3129585, 4282590, 5424614, 6259170, 8136921, 13561535, 16273842, 27123070, 40684605, 81369210]

約数ペア:

[(1, 81369210), (2, 40684605), (3, 27123070), (5, 16273842), (6, 13561535), (10, 8136921), (13, 6259170), (15, 5424614), (19, 4282590), (26, 3129585), (30, 2712307), (38, 2141295), (39, 2086390), (57, 1427530), (65, 1251834), (78, 1043195), (79, 1029990), (95, 856518), (114, 713765), (130, 625917), (139, 585390), (158, 514995), (190, 428259), (195, 417278), (237, 343330), (247, 329430), (278, 292695), (285, 285506), (390, 208639), (395, 205998), (417, 195130), (474, 171665), (494, 164715), (570, 142753), (695, 117078), (741, 109810), (790, 102999), (834, 97565), (1027, 79230), (1185, 68666), (1235, 65886), (1390, 58539), (1482, 54905), (1501, 54210), (1807, 45030), (2054, 39615), (2085, 39026), (2370, 34333), (2470, 32943), (2641, 30810), (3002, 27105), (3081, 26410), (3614, 22515), (3705, 21962), (4170, 19513), (4503, 18070), (5135, 15846), (5282, 15405), (5421, 15010), (6162, 13205), (7410, 10981), (7505, 10842), (7923, 10270), (9006, 9035)]