129123440

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1\times {\mathrm{179}}^1$

素因数の和:390

約数の個数: 80

約数和(自身を含む): 308551680

約数和(自身を除く): 179428240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 127, 142, 179, 254, 284, 355, 358, 508, 568, 635, 710, 716, 895, 1016, 1136, 1270, 1420, 1432, 1790, 2032, 2540, 2840, 2864, 3580, 5080, 5680, 7160, 9017, 10160, 12709, 14320, 18034, 22733, 25418, 36068, 45085, 45466, 50836, 63545, 72136, 90170, 90932, 101672, 113665, 127090, 144272, 180340, 181864, 203344, 227330, 254180, 360680, 363728, 454660, 508360, 721360, 909320, 1016720, 1614043, 1818640, 3228086, 6456172, 8070215, 12912344, 16140430, 25824688, 32280860, 64561720, 129123440]

約数ペア:

[(1, 129123440), (2, 64561720), (4, 32280860), (5, 25824688), (8, 16140430), (10, 12912344), (16, 8070215), (20, 6456172), (40, 3228086), (71, 1818640), (80, 1614043), (127, 1016720), (142, 909320), (179, 721360), (254, 508360), (284, 454660), (355, 363728), (358, 360680), (508, 254180), (568, 227330), (635, 203344), (710, 181864), (716, 180340), (895, 144272), (1016, 127090), (1136, 113665), (1270, 101672), (1420, 90932), (1432, 90170), (1790, 72136), (2032, 63545), (2540, 50836), (2840, 45466), (2864, 45085), (3580, 36068), (5080, 25418), (5680, 22733), (7160, 18034), (9017, 14320), (10160, 12709)]