89442920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{319439}}^1$

素因数の和:319457

約数の個数: 32

約数和(自身を含む): 229996800

約数和(自身を除く): 140553880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 319439, 638878, 1277756, 1597195, 2236073, 2555512, 3194390, 4472146, 6388780, 8944292, 11180365, 12777560, 17888584, 22360730, 44721460, 89442920]

約数ペア:

[(1, 89442920), (2, 44721460), (4, 22360730), (5, 17888584), (7, 12777560), (8, 11180365), (10, 8944292), (14, 6388780), (20, 4472146), (28, 3194390), (35, 2555512), (40, 2236073), (56, 1597195), (70, 1277756), (140, 638878), (280, 319439)]