263123536

素因数分解:

$2^4\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1$

素因数の和:181

約数の個数: 120

約数和(自身を含む): 591081216

約数和(自身を除く): 327957680

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 43, 52, 62, 73, 86, 104, 124, 146, 169, 172, 208, 248, 292, 338, 344, 403, 496, 559, 584, 676, 688, 806, 949, 1118, 1168, 1333, 1352, 1612, 1898, 2236, 2263, 2666, 2704, 3139, 3224, 3796, 4472, 4526, 5239, 5332, 6278, 6448, 7267, 7592, 8944, 9052, 10478, 10664, 12337, 12556, 14534, 15184, 17329, 18104, 20956, 21328, 24674, 25112, 29068, 29419, 34658, 36208, 40807, 41912, 49348, 50224, 58136, 58838, 69316, 81614, 83824, 97309, 98696, 116272, 117676, 138632, 163228, 194618, 197392, 225277, 235352, 277264, 326456, 382447, 389236, 450554, 470704, 530491, 652912, 764894, 778472, 901108, 1060982, 1265017, 1529788, 1556944, 1802216, 2121964, 2530034, 3059576, 3604432, 4243928, 5060068, 6119152, 8487856, 10120136, 16445221, 20240272, 32890442, 65780884, 131561768, 263123536]

約数ペア:

[(1, 263123536), (2, 131561768), (4, 65780884), (8, 32890442), (13, 20240272), (16, 16445221), (26, 10120136), (31, 8487856), (43, 6119152), (52, 5060068), (62, 4243928), (73, 3604432), (86, 3059576), (104, 2530034), (124, 2121964), (146, 1802216), (169, 1556944), (172, 1529788), (208, 1265017), (248, 1060982), (292, 901108), (338, 778472), (344, 764894), (403, 652912), (496, 530491), (559, 470704), (584, 450554), (676, 389236), (688, 382447), (806, 326456), (949, 277264), (1118, 235352), (1168, 225277), (1333, 197392), (1352, 194618), (1612, 163228), (1898, 138632), (2236, 117676), (2263, 116272), (2666, 98696), (2704, 97309), (3139, 83824), (3224, 81614), (3796, 69316), (4472, 58838), (4526, 58136), (5239, 50224), (5332, 49348), (6278, 41912), (6448, 40807), (7267, 36208), (7592, 34658), (8944, 29419), (9052, 29068), (10478, 25112), (10664, 24674), (12337, 21328), (12556, 20956), (14534, 18104), (15184, 17329)]