78626560

素因数分解:

$2^8\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1$

素因数の和:154

約数の個数: 144

約数和(自身を含む): 205299360

約数和(自身を除く): 126672800

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 53, 61, 64, 76, 80, 95, 106, 122, 128, 152, 160, 190, 212, 244, 256, 265, 304, 305, 320, 380, 424, 488, 530, 608, 610, 640, 760, 848, 976, 1007, 1060, 1159, 1216, 1220, 1280, 1520, 1696, 1952, 2014, 2120, 2318, 2432, 2440, 3040, 3233, 3392, 3904, 4028, 4240, 4636, 4864, 4880, 5035, 5795, 6080, 6466, 6784, 7808, 8056, 8480, 9272, 9760, 10070, 11590, 12160, 12932, 13568, 15616, 16112, 16165, 16960, 18544, 19520, 20140, 23180, 24320, 25864, 32224, 32330, 33920, 37088, 39040, 40280, 46360, 51728, 61427, 64448, 64660, 67840, 74176, 78080, 80560, 92720, 103456, 122854, 128896, 129320, 148352, 161120, 185440, 206912, 245708, 257792, 258640, 296704, 307135, 322240, 370880, 413824, 491416, 517280, 614270, 644480, 741760, 827648, 982832, 1034560, 1228540, 1288960, 1483520, 1965664, 2069120, 2457080, 3931328, 4138240, 4914160, 7862656, 9828320, 15725312, 19656640, 39313280, 78626560]

約数ペア:

[(1, 78626560), (2, 39313280), (4, 19656640), (5, 15725312), (8, 9828320), (10, 7862656), (16, 4914160), (19, 4138240), (20, 3931328), (32, 2457080), (38, 2069120), (40, 1965664), (53, 1483520), (61, 1288960), (64, 1228540), (76, 1034560), (80, 982832), (95, 827648), (106, 741760), (122, 644480), (128, 614270), (152, 517280), (160, 491416), (190, 413824), (212, 370880), (244, 322240), (256, 307135), (265, 296704), (304, 258640), (305, 257792), (320, 245708), (380, 206912), (424, 185440), (488, 161120), (530, 148352), (608, 129320), (610, 128896), (640, 122854), (760, 103456), (848, 92720), (976, 80560), (1007, 78080), (1060, 74176), (1159, 67840), (1216, 64660), (1220, 64448), (1280, 61427), (1520, 51728), (1696, 46360), (1952, 40280), (2014, 39040), (2120, 37088), (2318, 33920), (2432, 32330), (2440, 32224), (3040, 25864), (3233, 24320), (3392, 23180), (3904, 20140), (4028, 19520), (4240, 18544), (4636, 16960), (4864, 16165), (4880, 16112), (5035, 15616), (5795, 13568), (6080, 12932), (6466, 12160), (6784, 11590), (7808, 10070), (8056, 9760), (8480, 9272)]