215965680

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{128551}}^1$

素因数の和:128574

約数の個数: 80

約数和(自身を含む): 765141504

約数和(自身を除く): 549175824

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 128551, 257102, 385653, 514204, 642755, 771306, 899857, 1028408, 1285510, 1542612, 1799714, 1928265, 2056816, 2571020, 2699571, 3085224, 3599428, 3856530, 4499285, 5142040, 5399142, 6170448, 7198856, 7713060, 8998570, 10284080, 10798284, 13497855, 14397712, 15426120, 17997140, 21596568, 26995710, 30852240, 35994280, 43193136, 53991420, 71988560, 107982840, 215965680]

約数ペア:

[(1, 215965680), (2, 107982840), (3, 71988560), (4, 53991420), (5, 43193136), (6, 35994280), (7, 30852240), (8, 26995710), (10, 21596568), (12, 17997140), (14, 15426120), (15, 14397712), (16, 13497855), (20, 10798284), (21, 10284080), (24, 8998570), (28, 7713060), (30, 7198856), (35, 6170448), (40, 5399142), (42, 5142040), (48, 4499285), (56, 3856530), (60, 3599428), (70, 3085224), (80, 2699571), (84, 2571020), (105, 2056816), (112, 1928265), (120, 1799714), (140, 1542612), (168, 1285510), (210, 1028408), (240, 899857), (280, 771306), (336, 642755), (420, 514204), (560, 385653), (840, 257102), (1680, 128551)]