2156300500

素因数分解:

$2^2\times 5^3\times {\mathrm{19}}^1\times {\mathrm{353}}^1\times {\mathrm{643}}^1$

素因数の和:1034

約数の個数: 96

約数和(自身を含む): 4978995840

約数和(自身を除く): 2822695340

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 125, 190, 250, 353, 380, 475, 500, 643, 706, 950, 1286, 1412, 1765, 1900, 2375, 2572, 3215, 3530, 4750, 6430, 6707, 7060, 8825, 9500, 12217, 12860, 13414, 16075, 17650, 24434, 26828, 32150, 33535, 35300, 44125, 48868, 61085, 64300, 67070, 80375, 88250, 122170, 134140, 160750, 167675, 176500, 226979, 244340, 305425, 321500, 335350, 453958, 610850, 670700, 838375, 907916, 1134895, 1221700, 1527125, 1676750, 2269790, 3054250, 3353500, 4312601, 4539580, 5674475, 6108500, 8625202, 11348950, 17250404, 21563005, 22697900, 28372375, 43126010, 56744750, 86252020, 107815025, 113489500, 215630050, 431260100, 539075125, 1078150250, 2156300500]

約数ペア:

[(1, 2156300500), (2, 1078150250), (4, 539075125), (5, 431260100), (10, 215630050), (19, 113489500), (20, 107815025), (25, 86252020), (38, 56744750), (50, 43126010), (76, 28372375), (95, 22697900), (100, 21563005), (125, 17250404), (190, 11348950), (250, 8625202), (353, 6108500), (380, 5674475), (475, 4539580), (500, 4312601), (643, 3353500), (706, 3054250), (950, 2269790), (1286, 1676750), (1412, 1527125), (1765, 1221700), (1900, 1134895), (2375, 907916), (2572, 838375), (3215, 670700), (3530, 610850), (4750, 453958), (6430, 335350), (6707, 321500), (7060, 305425), (8825, 244340), (9500, 226979), (12217, 176500), (12860, 167675), (13414, 160750), (16075, 134140), (17650, 122170), (24434, 88250), (26828, 80375), (32150, 67070), (33535, 64300), (35300, 61085), (44125, 48868)]