388626560

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{389}}^1$

素因数の和:638

約数の個数: 128

約数和(自身を含む): 1069286400

約数和(自身を除く): 680659840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 223, 224, 280, 320, 389, 446, 448, 560, 640, 778, 892, 896, 1115, 1120, 1556, 1561, 1784, 1945, 2230, 2240, 2723, 3112, 3122, 3568, 3890, 4460, 4480, 5446, 6224, 6244, 7136, 7780, 7805, 8920, 10892, 12448, 12488, 13615, 14272, 15560, 15610, 17840, 21784, 24896, 24976, 27230, 28544, 31120, 31220, 35680, 43568, 49792, 49952, 54460, 62240, 62440, 71360, 86747, 87136, 99904, 108920, 124480, 124880, 142720, 173494, 174272, 199808, 217840, 248960, 249760, 346988, 348544, 433735, 435680, 499520, 607229, 693976, 867470, 871360, 999040, 1214458, 1387952, 1734940, 1742720, 2428916, 2775904, 3036145, 3469880, 4857832, 5551808, 6072290, 6939760, 9715664, 11103616, 12144580, 13879520, 19431328, 24289160, 27759040, 38862656, 48578320, 55518080, 77725312, 97156640, 194313280, 388626560]

約数ペア:

[(1, 388626560), (2, 194313280), (4, 97156640), (5, 77725312), (7, 55518080), (8, 48578320), (10, 38862656), (14, 27759040), (16, 24289160), (20, 19431328), (28, 13879520), (32, 12144580), (35, 11103616), (40, 9715664), (56, 6939760), (64, 6072290), (70, 5551808), (80, 4857832), (112, 3469880), (128, 3036145), (140, 2775904), (160, 2428916), (223, 1742720), (224, 1734940), (280, 1387952), (320, 1214458), (389, 999040), (446, 871360), (448, 867470), (560, 693976), (640, 607229), (778, 499520), (892, 435680), (896, 433735), (1115, 348544), (1120, 346988), (1556, 249760), (1561, 248960), (1784, 217840), (1945, 199808), (2230, 174272), (2240, 173494), (2723, 142720), (3112, 124880), (3122, 124480), (3568, 108920), (3890, 99904), (4460, 87136), (4480, 86747), (5446, 71360), (6224, 62440), (6244, 62240), (7136, 54460), (7780, 49952), (7805, 49792), (8920, 43568), (10892, 35680), (12448, 31220), (12488, 31120), (13615, 28544), (14272, 27230), (15560, 24976), (15610, 24896), (17840, 21784)]