86970640

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{63949}}^1$

素因数の和:63979

約数の個数: 40

約数和(自身を含む): 214104600

約数和(自身を除く): 127133960

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 63949, 127898, 255796, 319745, 511592, 639490, 1023184, 1087133, 1278980, 2174266, 2557960, 4348532, 5115920, 5435665, 8697064, 10871330, 17394128, 21742660, 43485320, 86970640]

約数ペア:

[(1, 86970640), (2, 43485320), (4, 21742660), (5, 17394128), (8, 10871330), (10, 8697064), (16, 5435665), (17, 5115920), (20, 4348532), (34, 2557960), (40, 2174266), (68, 1278980), (80, 1087133), (85, 1023184), (136, 639490), (170, 511592), (272, 319745), (340, 255796), (680, 127898), (1360, 63949)]