251511840

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{389}}^1\times {\mathrm{449}}^1$

素因数の和:859

約数の個数: 144

約数和(自身を含む): 862407000

約数和(自身を除く): 610895160

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 389, 449, 480, 720, 778, 898, 1167, 1347, 1440, 1556, 1796, 1945, 2245, 2334, 2694, 3112, 3501, 3592, 3890, 4041, 4490, 4668, 5388, 5835, 6224, 6735, 7002, 7184, 7780, 8082, 8980, 9336, 10776, 11670, 12448, 13470, 14004, 14368, 15560, 16164, 17505, 17960, 18672, 20205, 21552, 23340, 26940, 28008, 31120, 32328, 35010, 35920, 37344, 40410, 43104, 46680, 53880, 56016, 62240, 64656, 70020, 71840, 80820, 93360, 107760, 112032, 129312, 140040, 161640, 174661, 186720, 215520, 280080, 323280, 349322, 523983, 560160, 646560, 698644, 873305, 1047966, 1397288, 1571949, 1746610, 2095932, 2619915, 2794576, 3143898, 3493220, 4191864, 5239830, 5589152, 6287796, 6986440, 7859745, 8383728, 10479660, 12575592, 13972880, 15719490, 16767456, 20959320, 25151184, 27945760, 31438980, 41918640, 50302368, 62877960, 83837280, 125755920, 251511840]

約数ペア:

[(1, 251511840), (2, 125755920), (3, 83837280), (4, 62877960), (5, 50302368), (6, 41918640), (8, 31438980), (9, 27945760), (10, 25151184), (12, 20959320), (15, 16767456), (16, 15719490), (18, 13972880), (20, 12575592), (24, 10479660), (30, 8383728), (32, 7859745), (36, 6986440), (40, 6287796), (45, 5589152), (48, 5239830), (60, 4191864), (72, 3493220), (80, 3143898), (90, 2794576), (96, 2619915), (120, 2095932), (144, 1746610), (160, 1571949), (180, 1397288), (240, 1047966), (288, 873305), (360, 698644), (389, 646560), (449, 560160), (480, 523983), (720, 349322), (778, 323280), (898, 280080), (1167, 215520), (1347, 186720), (1440, 174661), (1556, 161640), (1796, 140040), (1945, 129312), (2245, 112032), (2334, 107760), (2694, 93360), (3112, 80820), (3501, 71840), (3592, 70020), (3890, 64656), (4041, 62240), (4490, 56016), (4668, 53880), (5388, 46680), (5835, 43104), (6224, 40410), (6735, 37344), (7002, 35920), (7184, 35010), (7780, 32328), (8082, 31120), (8980, 28008), (9336, 26940), (10776, 23340), (11670, 21552), (12448, 20205), (13470, 18672), (14004, 17960), (14368, 17505), (15560, 16164)]