821260804

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{997}}^1$

素因数の和:1125

約数の個数: 96

約数和(自身を含む): 1852798976

約数和(自身を除く): 1031538172

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 31, 52, 62, 73, 91, 124, 146, 182, 217, 292, 364, 403, 434, 511, 806, 868, 949, 997, 1022, 1612, 1898, 1994, 2044, 2263, 2821, 3796, 3988, 4526, 5642, 6643, 6979, 9052, 11284, 12961, 13286, 13958, 15841, 25922, 26572, 27916, 29419, 30907, 31682, 51844, 58838, 61814, 63364, 72781, 90727, 117676, 123628, 145562, 181454, 205933, 216349, 291124, 362908, 401791, 411866, 432698, 509467, 803582, 823732, 865396, 946153, 1018934, 1607164, 1892306, 2037868, 2256211, 2812537, 3784612, 4512422, 5625074, 6623071, 9024844, 11250148, 13246142, 15793477, 26492284, 29330743, 31586954, 58661486, 63173908, 117322972, 205315201, 410630402, 821260804]

約数ペア:

[(1, 821260804), (2, 410630402), (4, 205315201), (7, 117322972), (13, 63173908), (14, 58661486), (26, 31586954), (28, 29330743), (31, 26492284), (52, 15793477), (62, 13246142), (73, 11250148), (91, 9024844), (124, 6623071), (146, 5625074), (182, 4512422), (217, 3784612), (292, 2812537), (364, 2256211), (403, 2037868), (434, 1892306), (511, 1607164), (806, 1018934), (868, 946153), (949, 865396), (997, 823732), (1022, 803582), (1612, 509467), (1898, 432698), (1994, 411866), (2044, 401791), (2263, 362908), (2821, 291124), (3796, 216349), (3988, 205933), (4526, 181454), (5642, 145562), (6643, 123628), (6979, 117676), (9052, 90727), (11284, 72781), (12961, 63364), (13286, 61814), (13958, 58838), (15841, 51844), (25922, 31682), (26572, 30907), (27916, 29419)]