20176166320

素因数分解:

$2^4\times 5^1\times {\mathrm{73}}^1\times {\mathrm{409}}^1\times {\mathrm{8447}}^1$

素因数の和:8942

約数の個数: 80

約数和(自身を含む): 47674091520

約数和(自身を除く): 27497925200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 73, 80, 146, 292, 365, 409, 584, 730, 818, 1168, 1460, 1636, 2045, 2920, 3272, 4090, 5840, 6544, 8180, 8447, 16360, 16894, 29857, 32720, 33788, 42235, 59714, 67576, 84470, 119428, 135152, 149285, 168940, 238856, 298570, 337880, 477712, 597140, 616631, 675760, 1194280, 1233262, 2388560, 2466524, 3083155, 3454823, 4933048, 6166310, 6909646, 9866096, 12332620, 13819292, 17274115, 24665240, 27638584, 34548230, 49330480, 55277168, 69096460, 138192920, 252202079, 276385840, 504404158, 1008808316, 1261010395, 2017616632, 2522020790, 4035233264, 5044041580, 10088083160, 20176166320]

約数ペア:

[(1, 20176166320), (2, 10088083160), (4, 5044041580), (5, 4035233264), (8, 2522020790), (10, 2017616632), (16, 1261010395), (20, 1008808316), (40, 504404158), (73, 276385840), (80, 252202079), (146, 138192920), (292, 69096460), (365, 55277168), (409, 49330480), (584, 34548230), (730, 27638584), (818, 24665240), (1168, 17274115), (1460, 13819292), (1636, 12332620), (2045, 9866096), (2920, 6909646), (3272, 6166310), (4090, 4933048), (5840, 3454823), (6544, 3083155), (8180, 2466524), (8447, 2388560), (16360, 1233262), (16894, 1194280), (29857, 675760), (32720, 616631), (33788, 597140), (42235, 477712), (59714, 337880), (67576, 298570), (84470, 238856), (119428, 168940), (135152, 149285)]