25193840

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{6427}}^1$

素因数の和:6454

約数の個数: 60

約数和(自身を含む): 68149656

約数和(自身を除く): 42955816

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 6427, 12854, 25708, 32135, 44989, 51416, 64270, 89978, 102832, 128540, 179956, 224945, 257080, 314923, 359912, 449890, 514160, 629846, 719824, 899780, 1259692, 1574615, 1799560, 2519384, 3149230, 3599120, 5038768, 6298460, 12596920, 25193840]

約数ペア:

[(1, 25193840), (2, 12596920), (4, 6298460), (5, 5038768), (7, 3599120), (8, 3149230), (10, 2519384), (14, 1799560), (16, 1574615), (20, 1259692), (28, 899780), (35, 719824), (40, 629846), (49, 514160), (56, 449890), (70, 359912), (80, 314923), (98, 257080), (112, 224945), (140, 179956), (196, 128540), (245, 102832), (280, 89978), (392, 64270), (490, 51416), (560, 44989), (784, 32135), (980, 25708), (1960, 12854), (3920, 6427)]