31018480

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1$

素因数の和:254

約数の個数: 80

約数和(自身を含む): 75423744

約数和(自身を除く): 44405264

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 71, 80, 86, 127, 142, 172, 215, 254, 284, 344, 355, 430, 508, 568, 635, 688, 710, 860, 1016, 1136, 1270, 1420, 1720, 2032, 2540, 2840, 3053, 3440, 5080, 5461, 5680, 6106, 9017, 10160, 10922, 12212, 15265, 18034, 21844, 24424, 27305, 30530, 36068, 43688, 45085, 48848, 54610, 61060, 72136, 87376, 90170, 109220, 122120, 144272, 180340, 218440, 244240, 360680, 387731, 436880, 721360, 775462, 1550924, 1938655, 3101848, 3877310, 6203696, 7754620, 15509240, 31018480]

約数ペア:

[(1, 31018480), (2, 15509240), (4, 7754620), (5, 6203696), (8, 3877310), (10, 3101848), (16, 1938655), (20, 1550924), (40, 775462), (43, 721360), (71, 436880), (80, 387731), (86, 360680), (127, 244240), (142, 218440), (172, 180340), (215, 144272), (254, 122120), (284, 109220), (344, 90170), (355, 87376), (430, 72136), (508, 61060), (568, 54610), (635, 48848), (688, 45085), (710, 43688), (860, 36068), (1016, 30530), (1136, 27305), (1270, 24424), (1420, 21844), (1720, 18034), (2032, 15265), (2540, 12212), (2840, 10922), (3053, 10160), (3440, 9017), (5080, 6106), (5461, 5680)]