20218397656

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{257}}^1\times {\mathrm{2129}}^1$

素因数の和:2572

約数の個数: 64

約数和(自身を含む): 39566880000

約数和(自身を除く): 19348482344

約数列:

[1, 2, 4, 8, 31, 62, 124, 149, 248, 257, 298, 514, 596, 1028, 1192, 2056, 2129, 4258, 4619, 7967, 8516, 9238, 15934, 17032, 18476, 31868, 36952, 38293, 63736, 65999, 76586, 131998, 153172, 263996, 306344, 317221, 527992, 547153, 634442, 1094306, 1187083, 1268884, 2188612, 2374166, 2537768, 4377224, 4748332, 9496664, 9833851, 16961743, 19667702, 33923486, 39335404, 67846972, 78670808, 81525797, 135693944, 163051594, 326103188, 652206376, 2527299707, 5054599414, 10109198828, 20218397656]

約数ペア:

[(1, 20218397656), (2, 10109198828), (4, 5054599414), (8, 2527299707), (31, 652206376), (62, 326103188), (124, 163051594), (149, 135693944), (248, 81525797), (257, 78670808), (298, 67846972), (514, 39335404), (596, 33923486), (1028, 19667702), (1192, 16961743), (2056, 9833851), (2129, 9496664), (4258, 4748332), (4619, 4377224), (7967, 2537768), (8516, 2374166), (9238, 2188612), (15934, 1268884), (17032, 1187083), (18476, 1094306), (31868, 634442), (36952, 547153), (38293, 527992), (63736, 317221), (65999, 306344), (76586, 263996), (131998, 153172)]