31080720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{193}}^1$

素因数の和:281

約数の個数: 160

約数和(自身を含む): 107385984

約数和(自身を除く): 76305264

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 33, 40, 44, 48, 55, 60, 61, 66, 80, 88, 110, 120, 122, 132, 165, 176, 183, 193, 220, 240, 244, 264, 305, 330, 366, 386, 440, 488, 528, 579, 610, 660, 671, 732, 772, 880, 915, 965, 976, 1158, 1220, 1320, 1342, 1464, 1544, 1830, 1930, 2013, 2123, 2316, 2440, 2640, 2684, 2895, 2928, 3088, 3355, 3660, 3860, 4026, 4246, 4632, 4880, 5368, 5790, 6369, 6710, 7320, 7720, 8052, 8492, 9264, 10065, 10615, 10736, 11580, 11773, 12738, 13420, 14640, 15440, 16104, 16984, 20130, 21230, 23160, 23546, 25476, 26840, 31845, 32208, 33968, 35319, 40260, 42460, 46320, 47092, 50952, 53680, 58865, 63690, 70638, 80520, 84920, 94184, 101904, 117730, 127380, 129503, 141276, 161040, 169840, 176595, 188368, 235460, 254760, 259006, 282552, 353190, 388509, 470920, 509520, 518012, 565104, 647515, 706380, 777018, 941840, 1036024, 1295030, 1412760, 1554036, 1942545, 2072048, 2590060, 2825520, 3108072, 3885090, 5180120, 6216144, 7770180, 10360240, 15540360, 31080720]

約数ペア:

[(1, 31080720), (2, 15540360), (3, 10360240), (4, 7770180), (5, 6216144), (6, 5180120), (8, 3885090), (10, 3108072), (11, 2825520), (12, 2590060), (15, 2072048), (16, 1942545), (20, 1554036), (22, 1412760), (24, 1295030), (30, 1036024), (33, 941840), (40, 777018), (44, 706380), (48, 647515), (55, 565104), (60, 518012), (61, 509520), (66, 470920), (80, 388509), (88, 353190), (110, 282552), (120, 259006), (122, 254760), (132, 235460), (165, 188368), (176, 176595), (183, 169840), (193, 161040), (220, 141276), (240, 129503), (244, 127380), (264, 117730), (305, 101904), (330, 94184), (366, 84920), (386, 80520), (440, 70638), (488, 63690), (528, 58865), (579, 53680), (610, 50952), (660, 47092), (671, 46320), (732, 42460), (772, 40260), (880, 35319), (915, 33968), (965, 32208), (976, 31845), (1158, 26840), (1220, 25476), (1320, 23546), (1342, 23160), (1464, 21230), (1544, 20130), (1830, 16984), (1930, 16104), (2013, 15440), (2123, 14640), (2316, 13420), (2440, 12738), (2640, 11773), (2684, 11580), (2895, 10736), (2928, 10615), (3088, 10065), (3355, 9264), (3660, 8492), (3860, 8052), (4026, 7720), (4246, 7320), (4632, 6710), (4880, 6369), (5368, 5790)]