16809940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{1009}}^1$

素因数の和:1049

約数の個数: 72

約数和(自身を含む): 43522920

約数和(自身を除く): 26712980

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, 476, 490, 595, 833, 980, 1009, 1190, 1666, 2018, 2380, 3332, 4036, 4165, 5045, 7063, 8330, 10090, 14126, 16660, 17153, 20180, 28252, 34306, 35315, 49441, 68612, 70630, 85765, 98882, 120071, 141260, 171530, 197764, 240142, 247205, 343060, 480284, 494410, 600355, 840497, 988820, 1200710, 1680994, 2401420, 3361988, 4202485, 8404970, 16809940]

約数ペア:

[(1, 16809940), (2, 8404970), (4, 4202485), (5, 3361988), (7, 2401420), (10, 1680994), (14, 1200710), (17, 988820), (20, 840497), (28, 600355), (34, 494410), (35, 480284), (49, 343060), (68, 247205), (70, 240142), (85, 197764), (98, 171530), (119, 141260), (140, 120071), (170, 98882), (196, 85765), (238, 70630), (245, 68612), (340, 49441), (476, 35315), (490, 34306), (595, 28252), (833, 20180), (980, 17153), (1009, 16660), (1190, 14126), (1666, 10090), (2018, 8330), (2380, 7063), (3332, 5045), (4036, 4165)]