51380280

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{20389}}^1$

素因数の和:20413

約数の個数: 96

約数和(自身を含む): 190850400

約数和(自身を除く): 139470120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 56, 60, 63, 70, 72, 84, 90, 105, 120, 126, 140, 168, 180, 210, 252, 280, 315, 360, 420, 504, 630, 840, 1260, 2520, 20389, 40778, 61167, 81556, 101945, 122334, 142723, 163112, 183501, 203890, 244668, 285446, 305835, 367002, 407780, 428169, 489336, 570892, 611670, 713615, 734004, 815560, 856338, 917505, 1141784, 1223340, 1284507, 1427230, 1468008, 1712676, 1835010, 2140845, 2446680, 2569014, 2854460, 3425352, 3670020, 4281690, 5138028, 5708920, 6422535, 7340040, 8563380, 10276056, 12845070, 17126760, 25690140, 51380280]

約数ペア:

[(1, 51380280), (2, 25690140), (3, 17126760), (4, 12845070), (5, 10276056), (6, 8563380), (7, 7340040), (8, 6422535), (9, 5708920), (10, 5138028), (12, 4281690), (14, 3670020), (15, 3425352), (18, 2854460), (20, 2569014), (21, 2446680), (24, 2140845), (28, 1835010), (30, 1712676), (35, 1468008), (36, 1427230), (40, 1284507), (42, 1223340), (45, 1141784), (56, 917505), (60, 856338), (63, 815560), (70, 734004), (72, 713615), (84, 611670), (90, 570892), (105, 489336), (120, 428169), (126, 407780), (140, 367002), (168, 305835), (180, 285446), (210, 244668), (252, 203890), (280, 183501), (315, 163112), (360, 142723), (420, 122334), (504, 101945), (630, 81556), (840, 61167), (1260, 40778), (2520, 20389)]