15521940

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{127}}^1$

素因数の和:246

約数の個数: 144

約数和(自身を含む): 54792192

約数和(自身を除く): 39270252

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 97, 105, 126, 127, 140, 180, 194, 210, 252, 254, 291, 315, 381, 388, 420, 485, 508, 582, 630, 635, 679, 762, 873, 889, 970, 1143, 1164, 1260, 1270, 1358, 1455, 1524, 1746, 1778, 1905, 1940, 2037, 2286, 2540, 2667, 2716, 2910, 3395, 3492, 3556, 3810, 4074, 4365, 4445, 4572, 5334, 5715, 5820, 6111, 6790, 7620, 8001, 8148, 8730, 8890, 10185, 10668, 11430, 12222, 12319, 13335, 13580, 16002, 17460, 17780, 20370, 22860, 24444, 24638, 26670, 30555, 32004, 36957, 40005, 40740, 49276, 53340, 61110, 61595, 73914, 80010, 86233, 110871, 122220, 123190, 147828, 160020, 172466, 184785, 221742, 246380, 258699, 344932, 369570, 431165, 443484, 517398, 554355, 739140, 776097, 862330, 1034796, 1108710, 1293495, 1552194, 1724660, 2217420, 2586990, 3104388, 3880485, 5173980, 7760970, 15521940]

約数ペア:

[(1, 15521940), (2, 7760970), (3, 5173980), (4, 3880485), (5, 3104388), (6, 2586990), (7, 2217420), (9, 1724660), (10, 1552194), (12, 1293495), (14, 1108710), (15, 1034796), (18, 862330), (20, 776097), (21, 739140), (28, 554355), (30, 517398), (35, 443484), (36, 431165), (42, 369570), (45, 344932), (60, 258699), (63, 246380), (70, 221742), (84, 184785), (90, 172466), (97, 160020), (105, 147828), (126, 123190), (127, 122220), (140, 110871), (180, 86233), (194, 80010), (210, 73914), (252, 61595), (254, 61110), (291, 53340), (315, 49276), (381, 40740), (388, 40005), (420, 36957), (485, 32004), (508, 30555), (582, 26670), (630, 24638), (635, 24444), (679, 22860), (762, 20370), (873, 17780), (889, 17460), (970, 16002), (1143, 13580), (1164, 13335), (1260, 12319), (1270, 12222), (1358, 11430), (1455, 10668), (1524, 10185), (1746, 8890), (1778, 8730), (1905, 8148), (1940, 8001), (2037, 7620), (2286, 6790), (2540, 6111), (2667, 5820), (2716, 5715), (2910, 5334), (3395, 4572), (3492, 4445), (3556, 4365), (3810, 4074)]