256228560

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{50839}}^1$

素因数の和:50865

約数の個数: 120

約数和(自身を含む): 983448960

約数和(自身を除く): 727220400

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 105, 112, 120, 126, 140, 144, 168, 180, 210, 240, 252, 280, 315, 336, 360, 420, 504, 560, 630, 720, 840, 1008, 1260, 1680, 2520, 5040, 50839, 101678, 152517, 203356, 254195, 305034, 355873, 406712, 457551, 508390, 610068, 711746, 762585, 813424, 915102, 1016780, 1067619, 1220136, 1423492, 1525170, 1779365, 1830204, 2033560, 2135238, 2287755, 2440272, 2846984, 3050340, 3202857, 3558730, 3660408, 4067120, 4270476, 4575510, 5338095, 5693968, 6100680, 6405714, 7117460, 7320816, 8540952, 9151020, 10676190, 12201360, 12811428, 14234920, 16014285, 17081904, 18302040, 21352380, 25622856, 28469840, 32028570, 36604080, 42704760, 51245712, 64057140, 85409520, 128114280, 256228560]

約数ペア:

[(1, 256228560), (2, 128114280), (3, 85409520), (4, 64057140), (5, 51245712), (6, 42704760), (7, 36604080), (8, 32028570), (9, 28469840), (10, 25622856), (12, 21352380), (14, 18302040), (15, 17081904), (16, 16014285), (18, 14234920), (20, 12811428), (21, 12201360), (24, 10676190), (28, 9151020), (30, 8540952), (35, 7320816), (36, 7117460), (40, 6405714), (42, 6100680), (45, 5693968), (48, 5338095), (56, 4575510), (60, 4270476), (63, 4067120), (70, 3660408), (72, 3558730), (80, 3202857), (84, 3050340), (90, 2846984), (105, 2440272), (112, 2287755), (120, 2135238), (126, 2033560), (140, 1830204), (144, 1779365), (168, 1525170), (180, 1423492), (210, 1220136), (240, 1067619), (252, 1016780), (280, 915102), (315, 813424), (336, 762585), (360, 711746), (420, 610068), (504, 508390), (560, 457551), (630, 406712), (720, 355873), (840, 305034), (1008, 254195), (1260, 203356), (1680, 152517), (2520, 101678), (5040, 50839)]