81023440

素因数分解:

$2^4\times 5^1\times {\mathrm{307}}^1\times {\mathrm{3299}}^1$

素因数の和:3619

約数の個数: 40

約数和(自身を含む): 189050400

約数和(自身を除く): 108026960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 307, 614, 1228, 1535, 2456, 3070, 3299, 4912, 6140, 6598, 12280, 13196, 16495, 24560, 26392, 32990, 52784, 65980, 131960, 263920, 1012793, 2025586, 4051172, 5063965, 8102344, 10127930, 16204688, 20255860, 40511720, 81023440]

約数ペア:

[(1, 81023440), (2, 40511720), (4, 20255860), (5, 16204688), (8, 10127930), (10, 8102344), (16, 5063965), (20, 4051172), (40, 2025586), (80, 1012793), (307, 263920), (614, 131960), (1228, 65980), (1535, 52784), (2456, 32990), (3070, 26392), (3299, 24560), (4912, 16495), (6140, 13196), (6598, 12280)]