20807838135

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{25673}}^1$

素因数の和:25805

約数の個数: 96

約数和(自身を含む): 43063308288

約数和(自身を除く): 22255470153

約数列:

[1, 3, 5, 7, 9, 15, 21, 31, 35, 45, 63, 83, 93, 105, 155, 217, 249, 279, 315, 415, 465, 581, 651, 747, 1085, 1245, 1395, 1743, 1953, 2573, 2905, 3255, 3735, 5229, 7719, 8715, 9765, 12865, 18011, 23157, 25673, 26145, 38595, 54033, 77019, 90055, 115785, 128365, 162099, 179711, 231057, 270165, 385095, 539133, 795863, 810495, 898555, 1155285, 1617399, 2130859, 2387589, 2695665, 3979315, 5571041, 6392577, 7162767, 8086995, 10654295, 11937945, 14916013, 16713123, 19177731, 27855205, 31962885, 35813835, 44748039, 50139369, 66056629, 74580065, 83565615, 95888655, 134244117, 198169887, 223740195, 250696845, 330283145, 462396403, 594509661, 671220585, 990849435, 1387189209, 2311982015, 2972548305, 4161567627, 6935946045, 20807838135]

約数ペア:

[(1, 20807838135), (3, 6935946045), (5, 4161567627), (7, 2972548305), (9, 2311982015), (15, 1387189209), (21, 990849435), (31, 671220585), (35, 594509661), (45, 462396403), (63, 330283145), (83, 250696845), (93, 223740195), (105, 198169887), (155, 134244117), (217, 95888655), (249, 83565615), (279, 74580065), (315, 66056629), (415, 50139369), (465, 44748039), (581, 35813835), (651, 31962885), (747, 27855205), (1085, 19177731), (1245, 16713123), (1395, 14916013), (1743, 11937945), (1953, 10654295), (2573, 8086995), (2905, 7162767), (3255, 6392577), (3735, 5571041), (5229, 3979315), (7719, 2695665), (8715, 2387589), (9765, 2130859), (12865, 1617399), (18011, 1155285), (23157, 898555), (25673, 810495), (26145, 795863), (38595, 539133), (54033, 385095), (77019, 270165), (90055, 231057), (115785, 179711), (128365, 162099)]