20012518864

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{353}}^1\times {\mathrm{16033}}^1$

素因数の和:16424

約数の個数: 80

約数和(自身を含む): 44341193232

約数和(自身を除く): 24328674368

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 34, 52, 68, 104, 136, 208, 221, 272, 353, 442, 706, 884, 1412, 1768, 2824, 3536, 4589, 5648, 6001, 9178, 12002, 16033, 18356, 24004, 32066, 36712, 48008, 64132, 73424, 78013, 96016, 128264, 156026, 208429, 256528, 272561, 312052, 416858, 545122, 624104, 833716, 1090244, 1248208, 1667432, 2180488, 3334864, 3543293, 4360976, 5659649, 7086586, 11319298, 14173172, 22638596, 28346344, 45277192, 56692688, 73575437, 90554384, 96214033, 147150874, 192428066, 294301748, 384856132, 588603496, 769712264, 1177206992, 1250782429, 1539424528, 2501564858, 5003129716, 10006259432, 20012518864]

約数ペア:

[(1, 20012518864), (2, 10006259432), (4, 5003129716), (8, 2501564858), (13, 1539424528), (16, 1250782429), (17, 1177206992), (26, 769712264), (34, 588603496), (52, 384856132), (68, 294301748), (104, 192428066), (136, 147150874), (208, 96214033), (221, 90554384), (272, 73575437), (353, 56692688), (442, 45277192), (706, 28346344), (884, 22638596), (1412, 14173172), (1768, 11319298), (2824, 7086586), (3536, 5659649), (4589, 4360976), (5648, 3543293), (6001, 3334864), (9178, 2180488), (12002, 1667432), (16033, 1248208), (18356, 1090244), (24004, 833716), (32066, 624104), (36712, 545122), (48008, 416858), (64132, 312052), (73424, 272561), (78013, 256528), (96016, 208429), (128264, 156026)]