15509240

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1$

素因数の和:252

約数の個数: 64

約数和(自身を含む): 36495360

約数和(自身を除く): 20986120

約数列:

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

約数ペア:

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