87440920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{312289}}^1$

素因数の和:312307

約数の個数: 32

約数和(自身を含む): 224848800

約数和(自身を除く): 137407880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 312289, 624578, 1249156, 1561445, 2186023, 2498312, 3122890, 4372046, 6245780, 8744092, 10930115, 12491560, 17488184, 21860230, 43720460, 87440920]

約数ペア:

[(1, 87440920), (2, 43720460), (4, 21860230), (5, 17488184), (7, 12491560), (8, 10930115), (10, 8744092), (14, 6245780), (20, 4372046), (28, 3122890), (35, 2498312), (40, 2186023), (56, 1561445), (70, 1249156), (140, 624578), (280, 312289)]