68909680

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{17579}}^1$

素因数の和:17606

約数の個数: 60

約数和(自身を含む): 186383160

約数和(自身を除く): 117473480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 17579, 35158, 70316, 87895, 123053, 140632, 175790, 246106, 281264, 351580, 492212, 615265, 703160, 861371, 984424, 1230530, 1406320, 1722742, 1968848, 2461060, 3445484, 4306855, 4922120, 6890968, 8613710, 9844240, 13781936, 17227420, 34454840, 68909680]

約数ペア:

[(1, 68909680), (2, 34454840), (4, 17227420), (5, 13781936), (7, 9844240), (8, 8613710), (10, 6890968), (14, 4922120), (16, 4306855), (20, 3445484), (28, 2461060), (35, 1968848), (40, 1722742), (49, 1406320), (56, 1230530), (70, 984424), (80, 861371), (98, 703160), (112, 615265), (140, 492212), (196, 351580), (245, 281264), (280, 246106), (392, 175790), (490, 140632), (560, 123053), (784, 87895), (980, 70316), (1960, 35158), (3920, 17579)]