21031858160

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1\times {\mathrm{157}}^1\times {\mathrm{283}}^1$

素因数の和:611

約数の個数: 160

約数和(自身を含む): 50711462592

約数和(自身を除く): 29679604432

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 97, 122, 157, 194, 244, 283, 305, 314, 388, 485, 488, 566, 610, 628, 776, 785, 970, 976, 1132, 1220, 1256, 1415, 1552, 1570, 1940, 2264, 2440, 2512, 2830, 3140, 3880, 4528, 4880, 5660, 5917, 6280, 7760, 9577, 11320, 11834, 12560, 15229, 17263, 19154, 22640, 23668, 27451, 29585, 30458, 34526, 38308, 44431, 47336, 47885, 54902, 59170, 60916, 69052, 76145, 76616, 86315, 88862, 94672, 95770, 109804, 118340, 121832, 137255, 138104, 152290, 153232, 172630, 177724, 191540, 219608, 222155, 236680, 243664, 274510, 276208, 304580, 345260, 355448, 383080, 439216, 444310, 473360, 549020, 609160, 690520, 710896, 766160, 888620, 928969, 1098040, 1218320, 1381040, 1674511, 1777240, 1857938, 2196080, 2710291, 3349022, 3554480, 3715876, 4309807, 4644845, 5420582, 6698044, 7431752, 8372555, 8619614, 9289690, 10841164, 13396088, 13551455, 14863504, 16745110, 17239228, 18579380, 21549035, 21682328, 26792176, 27102910, 33490220, 34478456, 37158760, 43098070, 43364656, 54205820, 66980440, 68956912, 74317520, 86196140, 108411640, 133960880, 172392280, 216823280, 262898227, 344784560, 525796454, 1051592908, 1314491135, 2103185816, 2628982270, 4206371632, 5257964540, 10515929080, 21031858160]

約数ペア:

[(1, 21031858160), (2, 10515929080), (4, 5257964540), (5, 4206371632), (8, 2628982270), (10, 2103185816), (16, 1314491135), (20, 1051592908), (40, 525796454), (61, 344784560), (80, 262898227), (97, 216823280), (122, 172392280), (157, 133960880), (194, 108411640), (244, 86196140), (283, 74317520), (305, 68956912), (314, 66980440), (388, 54205820), (485, 43364656), (488, 43098070), (566, 37158760), (610, 34478456), (628, 33490220), (776, 27102910), (785, 26792176), (970, 21682328), (976, 21549035), (1132, 18579380), (1220, 17239228), (1256, 16745110), (1415, 14863504), (1552, 13551455), (1570, 13396088), (1940, 10841164), (2264, 9289690), (2440, 8619614), (2512, 8372555), (2830, 7431752), (3140, 6698044), (3880, 5420582), (4528, 4644845), (4880, 4309807), (5660, 3715876), (5917, 3554480), (6280, 3349022), (7760, 2710291), (9577, 2196080), (11320, 1857938), (11834, 1777240), (12560, 1674511), (15229, 1381040), (17263, 1218320), (19154, 1098040), (22640, 928969), (23668, 888620), (27451, 766160), (29585, 710896), (30458, 690520), (34526, 609160), (38308, 549020), (44431, 473360), (47336, 444310), (47885, 439216), (54902, 383080), (59170, 355448), (60916, 345260), (69052, 304580), (76145, 276208), (76616, 274510), (86315, 243664), (88862, 236680), (94672, 222155), (95770, 219608), (109804, 191540), (118340, 177724), (121832, 172630), (137255, 153232), (138104, 152290)]