31230920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{111539}}^1$

素因数の和:111557

約数の個数: 32

約数和(自身を含む): 80308800

約数和(自身を除く): 49077880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 111539, 223078, 446156, 557695, 780773, 892312, 1115390, 1561546, 2230780, 3123092, 3903865, 4461560, 6246184, 7807730, 15615460, 31230920]

約数ペア:

[(1, 31230920), (2, 15615460), (4, 7807730), (5, 6246184), (7, 4461560), (8, 3903865), (10, 3123092), (14, 2230780), (20, 1561546), (28, 1115390), (35, 892312), (40, 780773), (56, 557695), (70, 446156), (140, 223078), (280, 111539)]