251225520

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{11503}}^1$

素因数の和:11539

約数の個数: 160

約数和(自身を含む): 958605312

約数和(自身を除く): 707379792

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 16, 20, 21, 24, 26, 28, 30, 35, 39, 40, 42, 48, 52, 56, 60, 65, 70, 78, 80, 84, 91, 104, 105, 112, 120, 130, 140, 156, 168, 182, 195, 208, 210, 240, 260, 273, 280, 312, 336, 364, 390, 420, 455, 520, 546, 560, 624, 728, 780, 840, 910, 1040, 1092, 1365, 1456, 1560, 1680, 1820, 2184, 2730, 3120, 3640, 4368, 5460, 7280, 10920, 11503, 21840, 23006, 34509, 46012, 57515, 69018, 80521, 92024, 115030, 138036, 149539, 161042, 172545, 184048, 230060, 241563, 276072, 299078, 322084, 345090, 402605, 448617, 460120, 483126, 552144, 598156, 644168, 690180, 747695, 805210, 897234, 920240, 966252, 1046773, 1196312, 1207815, 1288336, 1380360, 1495390, 1610420, 1794468, 1932504, 2093546, 2243085, 2392624, 2415630, 2760720, 2990780, 3140319, 3220840, 3588936, 3865008, 4187092, 4486170, 4831260, 5233865, 5981560, 6280638, 6441680, 7177872, 8374184, 8972340, 9662520, 10467730, 11963120, 12561276, 15701595, 16748368, 17944680, 19325040, 20935460, 25122552, 31403190, 35889360, 41870920, 50245104, 62806380, 83741840, 125612760, 251225520]

約数ペア:

[(1, 251225520), (2, 125612760), (3, 83741840), (4, 62806380), (5, 50245104), (6, 41870920), (7, 35889360), (8, 31403190), (10, 25122552), (12, 20935460), (13, 19325040), (14, 17944680), (15, 16748368), (16, 15701595), (20, 12561276), (21, 11963120), (24, 10467730), (26, 9662520), (28, 8972340), (30, 8374184), (35, 7177872), (39, 6441680), (40, 6280638), (42, 5981560), (48, 5233865), (52, 4831260), (56, 4486170), (60, 4187092), (65, 3865008), (70, 3588936), (78, 3220840), (80, 3140319), (84, 2990780), (91, 2760720), (104, 2415630), (105, 2392624), (112, 2243085), (120, 2093546), (130, 1932504), (140, 1794468), (156, 1610420), (168, 1495390), (182, 1380360), (195, 1288336), (208, 1207815), (210, 1196312), (240, 1046773), (260, 966252), (273, 920240), (280, 897234), (312, 805210), (336, 747695), (364, 690180), (390, 644168), (420, 598156), (455, 552144), (520, 483126), (546, 460120), (560, 448617), (624, 402605), (728, 345090), (780, 322084), (840, 299078), (910, 276072), (1040, 241563), (1092, 230060), (1365, 184048), (1456, 172545), (1560, 161042), (1680, 149539), (1820, 138036), (2184, 115030), (2730, 92024), (3120, 80521), (3640, 69018), (4368, 57515), (5460, 46012), (7280, 34509), (10920, 23006), (11503, 21840)]