6813940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{409}}^1$

素因数の和:449

約数の個数: 72

約数和(自身を含む): 17667720

約数和(自身を除く): 10853780

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 49, 68, 70, 85, 98, 119, 140, 170, 196, 238, 245, 340, 409, 476, 490, 595, 818, 833, 980, 1190, 1636, 1666, 2045, 2380, 2863, 3332, 4090, 4165, 5726, 6953, 8180, 8330, 11452, 13906, 14315, 16660, 20041, 27812, 28630, 34765, 40082, 48671, 57260, 69530, 80164, 97342, 100205, 139060, 194684, 200410, 243355, 340697, 400820, 486710, 681394, 973420, 1362788, 1703485, 3406970, 6813940]

約数ペア:

[(1, 6813940), (2, 3406970), (4, 1703485), (5, 1362788), (7, 973420), (10, 681394), (14, 486710), (17, 400820), (20, 340697), (28, 243355), (34, 200410), (35, 194684), (49, 139060), (68, 100205), (70, 97342), (85, 80164), (98, 69530), (119, 57260), (140, 48671), (170, 40082), (196, 34765), (238, 28630), (245, 27812), (340, 20041), (409, 16660), (476, 14315), (490, 13906), (595, 11452), (818, 8330), (833, 8180), (980, 6953), (1190, 5726), (1636, 4165), (1666, 4090), (2045, 3332), (2380, 2863)]