256408560

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{356123}}^1$

素因数の和:356142

約数の個数: 60

約数和(自身を含む): 861107832

約数和(自身を除く): 604699272

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 356123, 712246, 1068369, 1424492, 1780615, 2136738, 2848984, 3205107, 3561230, 4273476, 5341845, 5697968, 6410214, 7122460, 8546952, 10683690, 12820428, 14244920, 16025535, 17093904, 21367380, 25640856, 28489840, 32051070, 42734760, 51281712, 64102140, 85469520, 128204280, 256408560]

約数ペア:

[(1, 256408560), (2, 128204280), (3, 85469520), (4, 64102140), (5, 51281712), (6, 42734760), (8, 32051070), (9, 28489840), (10, 25640856), (12, 21367380), (15, 17093904), (16, 16025535), (18, 14244920), (20, 12820428), (24, 10683690), (30, 8546952), (36, 7122460), (40, 6410214), (45, 5697968), (48, 5341845), (60, 4273476), (72, 3561230), (80, 3205107), (90, 2848984), (120, 2136738), (144, 1780615), (180, 1424492), (240, 1068369), (360, 712246), (720, 356123)]