27800920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{99289}}^1$

素因数の和:99307

約数の個数: 32

約数和(自身を含む): 71488800

約数和(自身を除く): 43687880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 99289, 198578, 397156, 496445, 695023, 794312, 992890, 1390046, 1985780, 2780092, 3475115, 3971560, 5560184, 6950230, 13900460, 27800920]

約数ペア:

[(1, 27800920), (2, 13900460), (4, 6950230), (5, 5560184), (7, 3971560), (8, 3475115), (10, 2780092), (14, 1985780), (20, 1390046), (28, 992890), (35, 794312), (40, 695023), (56, 496445), (70, 397156), (140, 198578), (280, 99289)]