81616395820

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{268811}}^1$

素因数の和:268903

約数の個数: 96

約数和(自身を含む): 195092997120

約数和(自身を除く): 113476601300

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 47, 68, 76, 85, 94, 95, 170, 188, 190, 235, 323, 340, 380, 470, 646, 799, 893, 940, 1292, 1598, 1615, 1786, 3196, 3230, 3572, 3995, 4465, 6460, 7990, 8930, 15181, 15980, 17860, 30362, 60724, 75905, 151810, 268811, 303620, 537622, 1075244, 1344055, 2688110, 4569787, 5107409, 5376220, 9139574, 10214818, 12634117, 18279148, 20429636, 22848935, 25268234, 25537045, 45697870, 50536468, 51074090, 63170585, 86825953, 91395740, 102148180, 126341170, 173651906, 214779989, 240048223, 252682340, 347303812, 429559978, 434129765, 480096446, 859119956, 868259530, 960192892, 1073899945, 1200241115, 1736519060, 2147799890, 2400482230, 4080819791, 4295599780, 4800964460, 8161639582, 16323279164, 20404098955, 40808197910, 81616395820]

約数ペア:

[(1, 81616395820), (2, 40808197910), (4, 20404098955), (5, 16323279164), (10, 8161639582), (17, 4800964460), (19, 4295599780), (20, 4080819791), (34, 2400482230), (38, 2147799890), (47, 1736519060), (68, 1200241115), (76, 1073899945), (85, 960192892), (94, 868259530), (95, 859119956), (170, 480096446), (188, 434129765), (190, 429559978), (235, 347303812), (323, 252682340), (340, 240048223), (380, 214779989), (470, 173651906), (646, 126341170), (799, 102148180), (893, 91395740), (940, 86825953), (1292, 63170585), (1598, 51074090), (1615, 50536468), (1786, 45697870), (3196, 25537045), (3230, 25268234), (3572, 22848935), (3995, 20429636), (4465, 18279148), (6460, 12634117), (7990, 10214818), (8930, 9139574), (15181, 5376220), (15980, 5107409), (17860, 4569787), (30362, 2688110), (60724, 1344055), (75905, 1075244), (151810, 537622), (268811, 303620)]