64742720

素因数分解:

$2^6\times 5^1\times 7^2\times {\mathrm{4129}}^1$

素因数の和:4160

約数の個数: 84

約数和(自身を含む): 179382420

約数和(自身を除く): 114639700

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 320, 392, 448, 490, 560, 784, 980, 1120, 1568, 1960, 2240, 3136, 3920, 4129, 7840, 8258, 15680, 16516, 20645, 28903, 33032, 41290, 57806, 66064, 82580, 115612, 132128, 144515, 165160, 202321, 231224, 264256, 289030, 330320, 404642, 462448, 578060, 660640, 809284, 924896, 1011605, 1156120, 1321280, 1618568, 1849792, 2023210, 2312240, 3237136, 4046420, 4624480, 6474272, 8092840, 9248960, 12948544, 16185680, 32371360, 64742720]

約数ペア:

[(1, 64742720), (2, 32371360), (4, 16185680), (5, 12948544), (7, 9248960), (8, 8092840), (10, 6474272), (14, 4624480), (16, 4046420), (20, 3237136), (28, 2312240), (32, 2023210), (35, 1849792), (40, 1618568), (49, 1321280), (56, 1156120), (64, 1011605), (70, 924896), (80, 809284), (98, 660640), (112, 578060), (140, 462448), (160, 404642), (196, 330320), (224, 289030), (245, 264256), (280, 231224), (320, 202321), (392, 165160), (448, 144515), (490, 132128), (560, 115612), (784, 82580), (980, 66064), (1120, 57806), (1568, 41290), (1960, 33032), (2240, 28903), (3136, 20645), (3920, 16516), (4129, 15680), (7840, 8258)]