247895820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{857}}^1\times {\mathrm{1607}}^1$

素因数の和:2479

約数の個数: 72

約数和(自身を含む): 753296544

約数和(自身を除く): 505400724

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 857, 1607, 1714, 2571, 3214, 3428, 4285, 4821, 5142, 6428, 7713, 8035, 8570, 9642, 10284, 12855, 14463, 15426, 16070, 17140, 19284, 24105, 25710, 28926, 30852, 32140, 38565, 48210, 51420, 57852, 72315, 77130, 96420, 144630, 154260, 289260, 1377199, 2754398, 4131597, 5508796, 6885995, 8263194, 12394791, 13771990, 16526388, 20657985, 24789582, 27543980, 41315970, 49579164, 61973955, 82631940, 123947910, 247895820]

約数ペア:

[(1, 247895820), (2, 123947910), (3, 82631940), (4, 61973955), (5, 49579164), (6, 41315970), (9, 27543980), (10, 24789582), (12, 20657985), (15, 16526388), (18, 13771990), (20, 12394791), (30, 8263194), (36, 6885995), (45, 5508796), (60, 4131597), (90, 2754398), (180, 1377199), (857, 289260), (1607, 154260), (1714, 144630), (2571, 96420), (3214, 77130), (3428, 72315), (4285, 57852), (4821, 51420), (5142, 48210), (6428, 38565), (7713, 32140), (8035, 30852), (8570, 28926), (9642, 25710), (10284, 24105), (12855, 19284), (14463, 17140), (15426, 16070)]