40400920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{144289}}^1$

素因数の和:144307

約数の個数: 32

約数和(自身を含む): 103888800

約数和(自身を除く): 63487880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 144289, 288578, 577156, 721445, 1010023, 1154312, 1442890, 2020046, 2885780, 4040092, 5050115, 5771560, 8080184, 10100230, 20200460, 40400920]

約数ペア:

[(1, 40400920), (2, 20200460), (4, 10100230), (5, 8080184), (7, 5771560), (8, 5050115), (10, 4040092), (14, 2885780), (20, 2020046), (28, 1442890), (35, 1154312), (40, 1010023), (56, 721445), (70, 577156), (140, 288578), (280, 144289)]