20804938400

素因数分解:

$2^5\times 5^2\times {\mathrm{1693}}^1\times {\mathrm{15361}}^1$

素因数の和:17074

約数の個数: 72

約数和(自身を含む): 50823364284

約数和(自身を除く): 30018425884

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 800, 1693, 3386, 6772, 8465, 13544, 15361, 16930, 27088, 30722, 33860, 42325, 54176, 61444, 67720, 76805, 84650, 122888, 135440, 153610, 169300, 245776, 270880, 307220, 338600, 384025, 491552, 614440, 677200, 768050, 1228880, 1354400, 1536100, 2457760, 3072200, 6144400, 12288800, 26006173, 52012346, 104024692, 130030865, 208049384, 260061730, 416098768, 520123460, 650154325, 832197536, 1040246920, 1300308650, 2080493840, 2600617300, 4160987680, 5201234600, 10402469200, 20804938400]

約数ペア:

[(1, 20804938400), (2, 10402469200), (4, 5201234600), (5, 4160987680), (8, 2600617300), (10, 2080493840), (16, 1300308650), (20, 1040246920), (25, 832197536), (32, 650154325), (40, 520123460), (50, 416098768), (80, 260061730), (100, 208049384), (160, 130030865), (200, 104024692), (400, 52012346), (800, 26006173), (1693, 12288800), (3386, 6144400), (6772, 3072200), (8465, 2457760), (13544, 1536100), (15361, 1354400), (16930, 1228880), (27088, 768050), (30722, 677200), (33860, 614440), (42325, 491552), (54176, 384025), (61444, 338600), (67720, 307220), (76805, 270880), (84650, 245776), (122888, 169300), (135440, 153610)]