30725840

素因数分解:

$2^4\times 5^1\times {\mathrm{239}}^1\times {\mathrm{1607}}^1$

素因数の和:1859

約数の個数: 40

約数和(自身を含む): 71781120

約数和(自身を除く): 41055280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 239, 478, 956, 1195, 1607, 1912, 2390, 3214, 3824, 4780, 6428, 8035, 9560, 12856, 16070, 19120, 25712, 32140, 64280, 128560, 384073, 768146, 1536292, 1920365, 3072584, 3840730, 6145168, 7681460, 15362920, 30725840]

約数ペア:

[(1, 30725840), (2, 15362920), (4, 7681460), (5, 6145168), (8, 3840730), (10, 3072584), (16, 1920365), (20, 1536292), (40, 768146), (80, 384073), (239, 128560), (478, 64280), (956, 32140), (1195, 25712), (1607, 19120), (1912, 16070), (2390, 12856), (3214, 9560), (3824, 8035), (4780, 6428)]