17994340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{9887}}^1$

素因数の和:9916

約数の個数: 48

約数和(自身を含む): 46513152

約数和(自身を除く): 28518812

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 9887, 19774, 39548, 49435, 69209, 98870, 128531, 138418, 197740, 257062, 276836, 346045, 514124, 642655, 692090, 899717, 1285310, 1384180, 1799434, 2570620, 3598868, 4498585, 8997170, 17994340]

約数ペア:

[(1, 17994340), (2, 8997170), (4, 4498585), (5, 3598868), (7, 2570620), (10, 1799434), (13, 1384180), (14, 1285310), (20, 899717), (26, 692090), (28, 642655), (35, 514124), (52, 346045), (65, 276836), (70, 257062), (91, 197740), (130, 138418), (140, 128531), (182, 98870), (260, 69209), (364, 49435), (455, 39548), (910, 19774), (1820, 9887)]