20485423400

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{883}}^1\times {\mathrm{8923}}^1$

素因数の和:9835

約数の個数: 96

約数和(自身を含む): 51356192160

約数和(自身を除く): 30870768760

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 130, 200, 260, 325, 520, 650, 883, 1300, 1766, 2600, 3532, 4415, 7064, 8830, 8923, 11479, 17660, 17846, 22075, 22958, 35320, 35692, 44150, 44615, 45916, 57395, 71384, 88300, 89230, 91832, 114790, 115999, 176600, 178460, 223075, 229580, 231998, 286975, 356920, 446150, 459160, 463996, 573950, 579995, 892300, 927992, 1147900, 1159990, 1784600, 2295800, 2319980, 2899975, 4639960, 5799950, 7879009, 11599900, 15758018, 23199800, 31516036, 39395045, 63032072, 78790090, 102427117, 157580180, 196975225, 204854234, 315160360, 393950450, 409708468, 512135585, 787900900, 819416936, 1024271170, 1575801800, 2048542340, 2560677925, 4097084680, 5121355850, 10242711700, 20485423400]

約数ペア:

[(1, 20485423400), (2, 10242711700), (4, 5121355850), (5, 4097084680), (8, 2560677925), (10, 2048542340), (13, 1575801800), (20, 1024271170), (25, 819416936), (26, 787900900), (40, 512135585), (50, 409708468), (52, 393950450), (65, 315160360), (100, 204854234), (104, 196975225), (130, 157580180), (200, 102427117), (260, 78790090), (325, 63032072), (520, 39395045), (650, 31516036), (883, 23199800), (1300, 15758018), (1766, 11599900), (2600, 7879009), (3532, 5799950), (4415, 4639960), (7064, 2899975), (8830, 2319980), (8923, 2295800), (11479, 1784600), (17660, 1159990), (17846, 1147900), (22075, 927992), (22958, 892300), (35320, 579995), (35692, 573950), (44150, 463996), (44615, 459160), (45916, 446150), (57395, 356920), (71384, 286975), (88300, 231998), (89230, 229580), (91832, 223075), (114790, 178460), (115999, 176600)]