131157280

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^2\times {\mathrm{853}}^1$

素因数の和:930

約数の個数: 72

約数和(自身を含む): 320552316

約数和(自身を除く): 189395036

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 155, 160, 248, 310, 496, 620, 853, 961, 992, 1240, 1706, 1922, 2480, 3412, 3844, 4265, 4805, 4960, 6824, 7688, 8530, 9610, 13648, 15376, 17060, 19220, 26443, 27296, 30752, 34120, 38440, 52886, 68240, 76880, 105772, 132215, 136480, 153760, 211544, 264430, 423088, 528860, 819733, 846176, 1057720, 1639466, 2115440, 3278932, 4098665, 4230880, 6557864, 8197330, 13115728, 16394660, 26231456, 32789320, 65578640, 131157280]

約数ペア:

[(1, 131157280), (2, 65578640), (4, 32789320), (5, 26231456), (8, 16394660), (10, 13115728), (16, 8197330), (20, 6557864), (31, 4230880), (32, 4098665), (40, 3278932), (62, 2115440), (80, 1639466), (124, 1057720), (155, 846176), (160, 819733), (248, 528860), (310, 423088), (496, 264430), (620, 211544), (853, 153760), (961, 136480), (992, 132215), (1240, 105772), (1706, 76880), (1922, 68240), (2480, 52886), (3412, 38440), (3844, 34120), (4265, 30752), (4805, 27296), (4960, 26443), (6824, 19220), (7688, 17060), (8530, 15376), (9610, 13648)]