209148870

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{563}}^1$

素因数の和:670

約数の個数: 128

約数和(自身を含む): 604247040

約数和(自身を除く): 395098170

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 29, 30, 35, 42, 58, 61, 70, 87, 105, 122, 145, 174, 183, 203, 210, 290, 305, 366, 406, 427, 435, 563, 609, 610, 854, 870, 915, 1015, 1126, 1218, 1281, 1689, 1769, 1830, 2030, 2135, 2562, 2815, 3045, 3378, 3538, 3941, 4270, 5307, 5630, 6090, 6405, 7882, 8445, 8845, 10614, 11823, 12383, 12810, 16327, 16890, 17690, 19705, 23646, 24766, 26535, 32654, 34343, 37149, 39410, 48981, 53070, 59115, 61915, 68686, 74298, 81635, 97962, 103029, 114289, 118230, 123830, 163270, 171715, 185745, 206058, 228578, 240401, 244905, 342867, 343430, 371490, 480802, 489810, 515145, 571445, 685734, 721203, 995947, 1030290, 1142890, 1202005, 1442406, 1714335, 1991894, 2404010, 2987841, 3428670, 3606015, 4979735, 5975682, 6971629, 7212030, 9959470, 13943258, 14939205, 20914887, 29878410, 34858145, 41829774, 69716290, 104574435, 209148870]

約数ペア:

[(1, 209148870), (2, 104574435), (3, 69716290), (5, 41829774), (6, 34858145), (7, 29878410), (10, 20914887), (14, 14939205), (15, 13943258), (21, 9959470), (29, 7212030), (30, 6971629), (35, 5975682), (42, 4979735), (58, 3606015), (61, 3428670), (70, 2987841), (87, 2404010), (105, 1991894), (122, 1714335), (145, 1442406), (174, 1202005), (183, 1142890), (203, 1030290), (210, 995947), (290, 721203), (305, 685734), (366, 571445), (406, 515145), (427, 489810), (435, 480802), (563, 371490), (609, 343430), (610, 342867), (854, 244905), (870, 240401), (915, 228578), (1015, 206058), (1126, 185745), (1218, 171715), (1281, 163270), (1689, 123830), (1769, 118230), (1830, 114289), (2030, 103029), (2135, 97962), (2562, 81635), (2815, 74298), (3045, 68686), (3378, 61915), (3538, 59115), (3941, 53070), (4270, 48981), (5307, 39410), (5630, 37149), (6090, 34343), (6405, 32654), (7882, 26535), (8445, 24766), (8845, 23646), (10614, 19705), (11823, 17690), (12383, 16890), (12810, 16327)]