18686804920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{66738589}}^1$

素因数の和:66738607

約数の個数: 32

約数和(自身を含む): 48051784800

約数和(自身を除く): 29364979880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 66738589, 133477178, 266954356, 333692945, 467170123, 533908712, 667385890, 934340246, 1334771780, 1868680492, 2335850615, 2669543560, 3737360984, 4671701230, 9343402460, 18686804920]

約数ペア:

[(1, 18686804920), (2, 9343402460), (4, 4671701230), (5, 3737360984), (7, 2669543560), (8, 2335850615), (10, 1868680492), (14, 1334771780), (20, 934340246), (28, 667385890), (35, 533908712), (40, 467170123), (56, 333692945), (70, 266954356), (140, 133477178), (280, 66738589)]