638384085

素因数分解:

$3^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{997}}^1$

素因数の和:1065

約数の個数: 96

約数和(自身を含む): 1255468032

約数和(自身を除く): 617083947

約数列:

[1, 3, 5, 9, 15, 17, 27, 31, 45, 51, 81, 85, 93, 135, 153, 155, 243, 255, 279, 405, 459, 465, 527, 765, 837, 997, 1215, 1377, 1395, 1581, 2295, 2511, 2635, 2991, 4131, 4185, 4743, 4985, 6885, 7533, 7905, 8973, 12555, 14229, 14955, 16949, 20655, 23715, 26919, 30907, 37665, 42687, 44865, 50847, 71145, 80757, 84745, 92721, 128061, 134595, 152541, 154535, 213435, 242271, 254235, 278163, 403785, 457623, 463605, 525419, 640305, 762705, 834489, 1211355, 1372869, 1390815, 1576257, 2288115, 2503467, 2627095, 4118607, 4172445, 4728771, 6864345, 7510401, 7881285, 12517335, 14186313, 20593035, 23643855, 37552005, 42558939, 70931565, 127676817, 212794695, 638384085]

約数ペア:

[(1, 638384085), (3, 212794695), (5, 127676817), (9, 70931565), (15, 42558939), (17, 37552005), (27, 23643855), (31, 20593035), (45, 14186313), (51, 12517335), (81, 7881285), (85, 7510401), (93, 6864345), (135, 4728771), (153, 4172445), (155, 4118607), (243, 2627095), (255, 2503467), (279, 2288115), (405, 1576257), (459, 1390815), (465, 1372869), (527, 1211355), (765, 834489), (837, 762705), (997, 640305), (1215, 525419), (1377, 463605), (1395, 457623), (1581, 403785), (2295, 278163), (2511, 254235), (2635, 242271), (2991, 213435), (4131, 154535), (4185, 152541), (4743, 134595), (4985, 128061), (6885, 92721), (7533, 84745), (7905, 80757), (8973, 71145), (12555, 50847), (14229, 44865), (14955, 42687), (16949, 37665), (20655, 30907), (23715, 26919)]