128204280

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{356123}}^1$

素因数の和:356140

約数の個数: 48

約数和(自身を含む): 416665080

約数和(自身を除く): 288460800

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 356123, 712246, 1068369, 1424492, 1780615, 2136738, 2848984, 3205107, 3561230, 4273476, 5341845, 6410214, 7122460, 8546952, 10683690, 12820428, 14244920, 16025535, 21367380, 25640856, 32051070, 42734760, 64102140, 128204280]

約数ペア:

[(1, 128204280), (2, 64102140), (3, 42734760), (4, 32051070), (5, 25640856), (6, 21367380), (8, 16025535), (9, 14244920), (10, 12820428), (12, 10683690), (15, 8546952), (18, 7122460), (20, 6410214), (24, 5341845), (30, 4273476), (36, 3561230), (40, 3205107), (45, 2848984), (60, 2136738), (72, 1780615), (90, 1424492), (120, 1068369), (180, 712246), (360, 356123)]