20804910735

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{157}}^1\times {\mathrm{6217}}^1$

素因数の和:6425

約数の個数: 96

約数和(自身を含む): 40319501760

約数和(自身を除く): 19514591025

約数列:

[1, 3, 5, 7, 15, 21, 29, 35, 49, 87, 105, 145, 147, 157, 203, 245, 435, 471, 609, 735, 785, 1015, 1099, 1421, 2355, 3045, 3297, 4263, 4553, 5495, 6217, 7105, 7693, 13659, 16485, 18651, 21315, 22765, 23079, 31085, 31871, 38465, 43519, 68295, 93255, 95613, 115395, 130557, 159355, 180293, 217595, 223097, 304633, 478065, 540879, 652785, 669291, 901465, 913899, 976069, 1115485, 1262051, 1523165, 2704395, 2928207, 3346455, 3786153, 4569495, 4880345, 6310255, 6832483, 8834357, 14641035, 18930765, 20497449, 26503071, 28306001, 34162415, 44171785, 47827381, 84918003, 102487245, 132515355, 141530005, 143482143, 198142007, 239136905, 424590015, 594426021, 717410715, 990710035, 1386994049, 2972130105, 4160982147, 6934970245, 20804910735]

約数ペア:

[(1, 20804910735), (3, 6934970245), (5, 4160982147), (7, 2972130105), (15, 1386994049), (21, 990710035), (29, 717410715), (35, 594426021), (49, 424590015), (87, 239136905), (105, 198142007), (145, 143482143), (147, 141530005), (157, 132515355), (203, 102487245), (245, 84918003), (435, 47827381), (471, 44171785), (609, 34162415), (735, 28306001), (785, 26503071), (1015, 20497449), (1099, 18930765), (1421, 14641035), (2355, 8834357), (3045, 6832483), (3297, 6310255), (4263, 4880345), (4553, 4569495), (5495, 3786153), (6217, 3346455), (7105, 2928207), (7693, 2704395), (13659, 1523165), (16485, 1262051), (18651, 1115485), (21315, 976069), (22765, 913899), (23079, 901465), (31085, 669291), (31871, 652785), (38465, 540879), (43519, 478065), (68295, 304633), (93255, 223097), (95613, 217595), (115395, 180293), (130557, 159355)]