66804640

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{8521}}^1$

素因数の和:8550

約数の個数: 72

約数和(自身を含む): 183615012

約数和(自身を除く): 116810372

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 3920, 7840, 8521, 17042, 34084, 42605, 59647, 68168, 85210, 119294, 136336, 170420, 238588, 272672, 298235, 340840, 417529, 477176, 596470, 681680, 835058, 954352, 1192940, 1363360, 1670116, 1908704, 2087645, 2385880, 3340232, 4175290, 4771760, 6680464, 8350580, 9543520, 13360928, 16701160, 33402320, 66804640]

約数ペア:

[(1, 66804640), (2, 33402320), (4, 16701160), (5, 13360928), (7, 9543520), (8, 8350580), (10, 6680464), (14, 4771760), (16, 4175290), (20, 3340232), (28, 2385880), (32, 2087645), (35, 1908704), (40, 1670116), (49, 1363360), (56, 1192940), (70, 954352), (80, 835058), (98, 681680), (112, 596470), (140, 477176), (160, 417529), (196, 340840), (224, 298235), (245, 272672), (280, 238588), (392, 170420), (490, 136336), (560, 119294), (784, 85210), (980, 68168), (1120, 59647), (1568, 42605), (1960, 34084), (3920, 17042), (7840, 8521)]