19116040

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1$

素因数の和:262

約数の個数: 64

約数和(自身を含む): 44789760

約数和(自身を除く): 25673720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 71, 106, 127, 142, 212, 254, 265, 284, 355, 424, 508, 530, 568, 635, 710, 1016, 1060, 1270, 1420, 2120, 2540, 2840, 3763, 5080, 6731, 7526, 9017, 13462, 15052, 18034, 18815, 26924, 30104, 33655, 36068, 37630, 45085, 53848, 67310, 72136, 75260, 90170, 134620, 150520, 180340, 269240, 360680, 477901, 955802, 1911604, 2389505, 3823208, 4779010, 9558020, 19116040]

約数ペア:

[(1, 19116040), (2, 9558020), (4, 4779010), (5, 3823208), (8, 2389505), (10, 1911604), (20, 955802), (40, 477901), (53, 360680), (71, 269240), (106, 180340), (127, 150520), (142, 134620), (212, 90170), (254, 75260), (265, 72136), (284, 67310), (355, 53848), (424, 45085), (508, 37630), (530, 36068), (568, 33655), (635, 30104), (710, 26924), (1016, 18815), (1060, 18034), (1270, 15052), (1420, 13462), (2120, 9017), (2540, 7526), (2840, 6731), (3763, 5080)]