18930380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{5879}}^1$

素因数の和:5918

約数の個数: 48

約数和(自身を含む): 47416320

約数和(自身を除く): 28485940

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 1610, 3220, 5879, 11758, 23516, 29395, 41153, 58790, 82306, 117580, 135217, 164612, 205765, 270434, 411530, 540868, 676085, 823060, 946519, 1352170, 1893038, 2704340, 3786076, 4732595, 9465190, 18930380]

約数ペア:

[(1, 18930380), (2, 9465190), (4, 4732595), (5, 3786076), (7, 2704340), (10, 1893038), (14, 1352170), (20, 946519), (23, 823060), (28, 676085), (35, 540868), (46, 411530), (70, 270434), (92, 205765), (115, 164612), (140, 135217), (161, 117580), (230, 82306), (322, 58790), (460, 41153), (644, 29395), (805, 23516), (1610, 11758), (3220, 5879)]