858420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{251}}^1$

素因数の和:285

約数の個数: 72

約数和(自身を含む): 2751840

約数和(自身を除く): 1893420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 251, 285, 342, 380, 502, 570, 684, 753, 855, 1004, 1140, 1255, 1506, 1710, 2259, 2510, 3012, 3420, 3765, 4518, 4769, 5020, 7530, 9036, 9538, 11295, 14307, 15060, 19076, 22590, 23845, 28614, 42921, 45180, 47690, 57228, 71535, 85842, 95380, 143070, 171684, 214605, 286140, 429210, 858420]

約数ペア:

[(1, 858420), (2, 429210), (3, 286140), (4, 214605), (5, 171684), (6, 143070), (9, 95380), (10, 85842), (12, 71535), (15, 57228), (18, 47690), (19, 45180), (20, 42921), (30, 28614), (36, 23845), (38, 22590), (45, 19076), (57, 15060), (60, 14307), (76, 11295), (90, 9538), (95, 9036), (114, 7530), (171, 5020), (180, 4769), (190, 4518), (228, 3765), (251, 3420), (285, 3012), (342, 2510), (380, 2259), (502, 1710), (570, 1506), (684, 1255), (753, 1140), (855, 1004)]