25111240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{263}}^1$

素因数の和:323

約数の個数: 128

約数和(自身を含む): 72990720

約数和(自身を除く): 47879480

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 31, 35, 40, 44, 55, 56, 62, 70, 77, 88, 110, 124, 140, 154, 155, 217, 220, 248, 263, 280, 308, 310, 341, 385, 434, 440, 526, 616, 620, 682, 770, 868, 1052, 1085, 1240, 1315, 1364, 1540, 1705, 1736, 1841, 2104, 2170, 2387, 2630, 2728, 2893, 3080, 3410, 3682, 4340, 4774, 5260, 5786, 6820, 7364, 8153, 8680, 9205, 9548, 10520, 11572, 11935, 13640, 14465, 14728, 16306, 18410, 19096, 20251, 23144, 23870, 28930, 32612, 36820, 40502, 40765, 47740, 57071, 57860, 65224, 73640, 81004, 81530, 89683, 95480, 101255, 114142, 115720, 162008, 163060, 179366, 202510, 228284, 285355, 326120, 358732, 405020, 448415, 456568, 570710, 627781, 717464, 810040, 896830, 1141420, 1255562, 1793660, 2282840, 2511124, 3138905, 3587320, 5022248, 6277810, 12555620, 25111240]

約数ペア:

[(1, 25111240), (2, 12555620), (4, 6277810), (5, 5022248), (7, 3587320), (8, 3138905), (10, 2511124), (11, 2282840), (14, 1793660), (20, 1255562), (22, 1141420), (28, 896830), (31, 810040), (35, 717464), (40, 627781), (44, 570710), (55, 456568), (56, 448415), (62, 405020), (70, 358732), (77, 326120), (88, 285355), (110, 228284), (124, 202510), (140, 179366), (154, 163060), (155, 162008), (217, 115720), (220, 114142), (248, 101255), (263, 95480), (280, 89683), (308, 81530), (310, 81004), (341, 73640), (385, 65224), (434, 57860), (440, 57071), (526, 47740), (616, 40765), (620, 40502), (682, 36820), (770, 32612), (868, 28930), (1052, 23870), (1085, 23144), (1240, 20251), (1315, 19096), (1364, 18410), (1540, 16306), (1705, 14728), (1736, 14465), (1841, 13640), (2104, 11935), (2170, 11572), (2387, 10520), (2630, 9548), (2728, 9205), (2893, 8680), (3080, 8153), (3410, 7364), (3682, 6820), (4340, 5786), (4774, 5260)]