64199680

素因数分解:

$2^{10}\times 5^1\times {\mathrm{12539}}^1$

素因数の和:12564

約数の個数: 44

約数和(自身を含む): 154016280

約数和(自身を除く): 89816600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2560, 5120, 12539, 25078, 50156, 62695, 100312, 125390, 200624, 250780, 401248, 501560, 802496, 1003120, 1604992, 2006240, 3209984, 4012480, 6419968, 8024960, 12839936, 16049920, 32099840, 64199680]

約数ペア:

[(1, 64199680), (2, 32099840), (4, 16049920), (5, 12839936), (8, 8024960), (10, 6419968), (16, 4012480), (20, 3209984), (32, 2006240), (40, 1604992), (64, 1003120), (80, 802496), (128, 501560), (160, 401248), (256, 250780), (320, 200624), (512, 125390), (640, 100312), (1024, 62695), (1280, 50156), (2560, 25078), (5120, 12539)]