278841248

素因数分解:

$2^5\times 7^1\times {\mathrm{61}}^1\times {\mathrm{20407}}^1$

素因数の和:20485

約数の個数: 48

約数和(自身を含む): 637709184

約数和(自身を除く): 358867936

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 61, 112, 122, 224, 244, 427, 488, 854, 976, 1708, 1952, 3416, 6832, 13664, 20407, 40814, 81628, 142849, 163256, 285698, 326512, 571396, 653024, 1142792, 1244827, 2285584, 2489654, 4571168, 4979308, 8713789, 9958616, 17427578, 19917232, 34855156, 39834464, 69710312, 139420624, 278841248]

約数ペア:

[(1, 278841248), (2, 139420624), (4, 69710312), (7, 39834464), (8, 34855156), (14, 19917232), (16, 17427578), (28, 9958616), (32, 8713789), (56, 4979308), (61, 4571168), (112, 2489654), (122, 2285584), (224, 1244827), (244, 1142792), (427, 653024), (488, 571396), (854, 326512), (976, 285698), (1708, 163256), (1952, 142849), (3416, 81628), (6832, 40814), (13664, 20407)]