397123328

素因数分解:

$2^8\times 7^1\times {\mathrm{167}}^1\times {\mathrm{1327}}^1$

素因数の和:1517

約数の個数: 72

約数和(自身を含む): 912049152

約数和(自身を除く): 514925824

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 167, 224, 256, 334, 448, 668, 896, 1169, 1327, 1336, 1792, 2338, 2654, 2672, 4676, 5308, 5344, 9289, 9352, 10616, 10688, 18578, 18704, 21232, 21376, 37156, 37408, 42464, 42752, 74312, 74816, 84928, 148624, 149632, 169856, 221609, 297248, 299264, 339712, 443218, 594496, 886436, 1188992, 1551263, 1772872, 2377984, 3102526, 3545744, 6205052, 7091488, 12410104, 14182976, 24820208, 28365952, 49640416, 56731904, 99280832, 198561664, 397123328]

約数ペア:

[(1, 397123328), (2, 198561664), (4, 99280832), (7, 56731904), (8, 49640416), (14, 28365952), (16, 24820208), (28, 14182976), (32, 12410104), (56, 7091488), (64, 6205052), (112, 3545744), (128, 3102526), (167, 2377984), (224, 1772872), (256, 1551263), (334, 1188992), (448, 886436), (668, 594496), (896, 443218), (1169, 339712), (1327, 299264), (1336, 297248), (1792, 221609), (2338, 169856), (2654, 149632), (2672, 148624), (4676, 84928), (5308, 74816), (5344, 74312), (9289, 42752), (9352, 42464), (10616, 37408), (10688, 37156), (18578, 21376), (18704, 21232)]