16515940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{887}}^1$

素因数の和:929

約数の個数: 72

約数和(自身を含む): 42517440

約数和(自身を除く): 26001500

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 49, 70, 76, 95, 98, 133, 140, 190, 196, 245, 266, 380, 490, 532, 665, 887, 931, 980, 1330, 1774, 1862, 2660, 3548, 3724, 4435, 4655, 6209, 8870, 9310, 12418, 16853, 17740, 18620, 24836, 31045, 33706, 43463, 62090, 67412, 84265, 86926, 117971, 124180, 168530, 173852, 217315, 235942, 337060, 434630, 471884, 589855, 825797, 869260, 1179710, 1651594, 2359420, 3303188, 4128985, 8257970, 16515940]

約数ペア:

[(1, 16515940), (2, 8257970), (4, 4128985), (5, 3303188), (7, 2359420), (10, 1651594), (14, 1179710), (19, 869260), (20, 825797), (28, 589855), (35, 471884), (38, 434630), (49, 337060), (70, 235942), (76, 217315), (95, 173852), (98, 168530), (133, 124180), (140, 117971), (190, 86926), (196, 84265), (245, 67412), (266, 62090), (380, 43463), (490, 33706), (532, 31045), (665, 24836), (887, 18620), (931, 17740), (980, 16853), (1330, 12418), (1774, 9310), (1862, 8870), (2660, 6209), (3548, 4655), (3724, 4435)]