20635217855

素因数分解:

$5^1\times 7^3\times {\mathrm{23}}^1\times {\mathrm{149}}^1\times {\mathrm{3511}}^1$

素因数の和:3709

約数の個数: 64

約数和(自身を含む): 30343680000

約数和(自身を除く): 9708462145

約数列:

[1, 5, 7, 23, 35, 49, 115, 149, 161, 245, 343, 745, 805, 1043, 1127, 1715, 3427, 3511, 5215, 5635, 7301, 7889, 17135, 17555, 23989, 24577, 36505, 39445, 51107, 80753, 119945, 122885, 167923, 172039, 255535, 403765, 523139, 565271, 839615, 860195, 1175461, 1204273, 2615695, 2826355, 3661973, 3956897, 5877305, 6021365, 12032197, 18309865, 19784485, 25633811, 27698279, 60160985, 84225379, 128169055, 138491395, 179436677, 421126895, 589577653, 897183385, 2947888265, 4127043571, 20635217855]

約数ペア:

[(1, 20635217855), (5, 4127043571), (7, 2947888265), (23, 897183385), (35, 589577653), (49, 421126895), (115, 179436677), (149, 138491395), (161, 128169055), (245, 84225379), (343, 60160985), (745, 27698279), (805, 25633811), (1043, 19784485), (1127, 18309865), (1715, 12032197), (3427, 6021365), (3511, 5877305), (5215, 3956897), (5635, 3661973), (7301, 2826355), (7889, 2615695), (17135, 1204273), (17555, 1175461), (23989, 860195), (24577, 839615), (36505, 565271), (39445, 523139), (51107, 403765), (80753, 255535), (119945, 172039), (122885, 167923)]