18219880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{65071}}^1$

素因数の和:65089

約数の個数: 32

約数和(自身を含む): 46851840

約数和(自身を除く): 28631960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 65071, 130142, 260284, 325355, 455497, 520568, 650710, 910994, 1301420, 1821988, 2277485, 2602840, 3643976, 4554970, 9109940, 18219880]

約数ペア:

[(1, 18219880), (2, 9109940), (4, 4554970), (5, 3643976), (7, 2602840), (8, 2277485), (10, 1821988), (14, 1301420), (20, 910994), (28, 650710), (35, 520568), (40, 455497), (56, 325355), (70, 260284), (140, 130142), (280, 65071)]