131920040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{181}}^1$

素因数の和:355

約数の個数: 128

約数和(自身を含む): 361670400

約数和(自身を除く): 229750360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 56, 70, 76, 95, 133, 137, 140, 152, 181, 190, 266, 274, 280, 362, 380, 532, 548, 665, 685, 724, 760, 905, 959, 1064, 1096, 1267, 1330, 1370, 1448, 1810, 1918, 2534, 2603, 2660, 2740, 3439, 3620, 3836, 4795, 5068, 5206, 5320, 5480, 6335, 6878, 7240, 7672, 9590, 10136, 10412, 12670, 13015, 13756, 17195, 18221, 19180, 20824, 24073, 24797, 25340, 26030, 27512, 34390, 36442, 38360, 48146, 49594, 50680, 52060, 68780, 72884, 91105, 96292, 99188, 104120, 120365, 123985, 137560, 145768, 173579, 182210, 192584, 198376, 240730, 247970, 347158, 364420, 471143, 481460, 495940, 694316, 728840, 867895, 942286, 962920, 991880, 1388632, 1735790, 1884572, 2355715, 3298001, 3471580, 3769144, 4711430, 6596002, 6943160, 9422860, 13192004, 16490005, 18845720, 26384008, 32980010, 65960020, 131920040]

約数ペア:

[(1, 131920040), (2, 65960020), (4, 32980010), (5, 26384008), (7, 18845720), (8, 16490005), (10, 13192004), (14, 9422860), (19, 6943160), (20, 6596002), (28, 4711430), (35, 3769144), (38, 3471580), (40, 3298001), (56, 2355715), (70, 1884572), (76, 1735790), (95, 1388632), (133, 991880), (137, 962920), (140, 942286), (152, 867895), (181, 728840), (190, 694316), (266, 495940), (274, 481460), (280, 471143), (362, 364420), (380, 347158), (532, 247970), (548, 240730), (665, 198376), (685, 192584), (724, 182210), (760, 173579), (905, 145768), (959, 137560), (1064, 123985), (1096, 120365), (1267, 104120), (1330, 99188), (1370, 96292), (1448, 91105), (1810, 72884), (1918, 68780), (2534, 52060), (2603, 50680), (2660, 49594), (2740, 48146), (3439, 38360), (3620, 36442), (3836, 34390), (4795, 27512), (5068, 26030), (5206, 25340), (5320, 24797), (5480, 24073), (6335, 20824), (6878, 19180), (7240, 18221), (7672, 17195), (9590, 13756), (10136, 13015), (10412, 12670)]