778867138

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{163}}^1\times {\mathrm{1181}}^1$

素因数の和:1387

約数の個数: 48

約数和(自身を含む): 1428272064

約数和(自身を除く): 649404926

約数列:

[1, 2, 7, 14, 17, 34, 119, 163, 238, 289, 326, 578, 1141, 1181, 2023, 2282, 2362, 2771, 4046, 5542, 8267, 16534, 19397, 20077, 38794, 40154, 47107, 94214, 140539, 192503, 281078, 329749, 341309, 385006, 659498, 682618, 1347521, 2389163, 2695042, 3272551, 4778326, 6545102, 22907857, 45815714, 55633367, 111266734, 389433569, 778867138]

約数ペア:

[(1, 778867138), (2, 389433569), (7, 111266734), (14, 55633367), (17, 45815714), (34, 22907857), (119, 6545102), (163, 4778326), (238, 3272551), (289, 2695042), (326, 2389163), (578, 1347521), (1141, 682618), (1181, 659498), (2023, 385006), (2282, 341309), (2362, 329749), (2771, 281078), (4046, 192503), (5542, 140539), (8267, 94214), (16534, 47107), (19397, 40154), (20077, 38794)]