18678804970

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{997}}^1\times {\mathrm{267643}}^1$

素因数の和:268654

約数の個数: 32

約数和(自身を含む): 38463654528

約数和(自身を除く): 19784849558

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 997, 1994, 4985, 6979, 9970, 13958, 34895, 69790, 267643, 535286, 1338215, 1873501, 2676430, 3747002, 9367505, 18735010, 266840071, 533680142, 1334200355, 1867880497, 2668400710, 3735760994, 9339402485, 18678804970]

約数ペア:

[(1, 18678804970), (2, 9339402485), (5, 3735760994), (7, 2668400710), (10, 1867880497), (14, 1334200355), (35, 533680142), (70, 266840071), (997, 18735010), (1994, 9367505), (4985, 3747002), (6979, 2676430), (9970, 1873501), (13958, 1338215), (34895, 535286), (69790, 267643)]