18613940

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{479}}^1$

素因数の和:584

約数の個数: 48

約数和(自身を含む): 41126400

約数和(自身を除く): 22512460

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 67, 116, 134, 145, 268, 290, 335, 479, 580, 670, 958, 1340, 1916, 1943, 2395, 3886, 4790, 7772, 9580, 9715, 13891, 19430, 27782, 32093, 38860, 55564, 64186, 69455, 128372, 138910, 160465, 277820, 320930, 641860, 930697, 1861394, 3722788, 4653485, 9306970, 18613940]

約数ペア:

[(1, 18613940), (2, 9306970), (4, 4653485), (5, 3722788), (10, 1861394), (20, 930697), (29, 641860), (58, 320930), (67, 277820), (116, 160465), (134, 138910), (145, 128372), (268, 69455), (290, 64186), (335, 55564), (479, 38860), (580, 32093), (670, 27782), (958, 19430), (1340, 13891), (1916, 9715), (1943, 9580), (2395, 7772), (3886, 4790)]