19743660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{251}}^1$

素因数の和:308

約数の個数: 144

約数和(自身を含む): 66044160

約数和(自身を除く): 46300500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 23, 30, 36, 38, 45, 46, 57, 60, 69, 76, 90, 92, 95, 114, 115, 138, 171, 180, 190, 207, 228, 230, 251, 276, 285, 342, 345, 380, 414, 437, 460, 502, 570, 684, 690, 753, 828, 855, 874, 1004, 1035, 1140, 1255, 1311, 1380, 1506, 1710, 1748, 2070, 2185, 2259, 2510, 2622, 3012, 3420, 3765, 3933, 4140, 4370, 4518, 4769, 5020, 5244, 5773, 6555, 7530, 7866, 8740, 9036, 9538, 11295, 11546, 13110, 14307, 15060, 15732, 17319, 19076, 19665, 22590, 23092, 23845, 26220, 28614, 28865, 34638, 39330, 42921, 45180, 47690, 51957, 57228, 57730, 69276, 71535, 78660, 85842, 86595, 95380, 103914, 109687, 115460, 143070, 171684, 173190, 207828, 214605, 219374, 259785, 286140, 329061, 346380, 429210, 438748, 519570, 548435, 658122, 858420, 987183, 1039140, 1096870, 1316244, 1645305, 1974366, 2193740, 3290610, 3948732, 4935915, 6581220, 9871830, 19743660]

約数ペア:

[(1, 19743660), (2, 9871830), (3, 6581220), (4, 4935915), (5, 3948732), (6, 3290610), (9, 2193740), (10, 1974366), (12, 1645305), (15, 1316244), (18, 1096870), (19, 1039140), (20, 987183), (23, 858420), (30, 658122), (36, 548435), (38, 519570), (45, 438748), (46, 429210), (57, 346380), (60, 329061), (69, 286140), (76, 259785), (90, 219374), (92, 214605), (95, 207828), (114, 173190), (115, 171684), (138, 143070), (171, 115460), (180, 109687), (190, 103914), (207, 95380), (228, 86595), (230, 85842), (251, 78660), (276, 71535), (285, 69276), (342, 57730), (345, 57228), (380, 51957), (414, 47690), (437, 45180), (460, 42921), (502, 39330), (570, 34638), (684, 28865), (690, 28614), (753, 26220), (828, 23845), (855, 23092), (874, 22590), (1004, 19665), (1035, 19076), (1140, 17319), (1255, 15732), (1311, 15060), (1380, 14307), (1506, 13110), (1710, 11546), (1748, 11295), (2070, 9538), (2185, 9036), (2259, 8740), (2510, 7866), (2622, 7530), (3012, 6555), (3420, 5773), (3765, 5244), (3933, 5020), (4140, 4769), (4370, 4518)]